3x-7= 4x -11
-3x -3x
-7 = x-11
+11 +11
x = 4
2006-08-14 12:27:51
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answer #1
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answered by Anonymous
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4
2006-08-14 19:51:32
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answer #2
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answered by Anonymous
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Okay. Start by putting words into equations. You are looking for 3x-7 = 4x-11. On the left side, you are looking at 7 less than 3 times a number; on the right side, you are looking at 11 less than 4 times that number. Now you have simple algebra. Adding -3x to each side and 11 to each side, you get
4=x. There is your answer.
2006-08-14 19:30:22
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answer #3
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answered by Jon S 2
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7 less than 3 times a whole number......3x-7
11 less than 4 times the same number.........4x-11
is means =
so we have 3x-7=4x-11
now, we isolate the variable, keeping in mind, you do to one side what you do to the other
3x-7=4x-11
3x-7+11=4x-11+11
3x+4=4x
3x-3x+4=4x-3x
4=1x
or x=4
2006-08-14 19:34:30
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answer #4
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answered by lookatalltheluv 1
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you need to break the whole thing.
First (Read first part)
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7 less than 3 times a whole number
let whole number = X
3 times of it =3X
and 7 less than it =3X-7 (note it)
SECOND (Read 2nd part)
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11 less than 4 times that number
that number = X (Since it is refering to same # before)
4 times it = 4X
11 less than it = 4X-11 (Note it)
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your equation by saying "IS" mean, that what he said before "is" is equal to what he said After "is"
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so,
3X-7 = 4X-11
11-7=4X-3X
4 = X
so X=4.
2006-08-14 21:40:35
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answer #5
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answered by Da Sahar SToRaY 2
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3x-7=4x-11
3x-4x=-11+7
-1x=-4
x= 4
2006-08-14 19:30:30
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answer #6
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answered by wazullah 3
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Just follow court of the crimson king - he laid it out nicely for you.
2006-08-14 19:31:55
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answer #7
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answered by MollyMAM 6
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7 - 3x = 11 - 4x
-11 +3x -11 + 3x
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-4 = -x
x = 4
2006-08-14 20:27:11
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answer #8
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answered by jack_k744 3
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hmmm homework help i see.....well you're never gonna learn if you keep asking people ya know!!! so figure it out on your own. use your brain, that's what it's their for!!! THINK!!!
2006-08-14 19:28:14
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answer #9
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answered by luvshorses 2
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i think its eleven
2006-08-14 19:31:27
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answer #10
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answered by NESSY 1
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