ok now i understand the adding and subtracting 2-step equation problems but now i dont get the divideing and multiplying ones. the problem is x/2+7=11 can anyone explain how to do this step by step? thanks.
2007-10-10 13:32:51 · 5 answers · asked by Lexi L 1 in Science & Mathematics ➔ Mathematics
Okay here it is in a nut shell.
The equation x/2 + 7 = 11 can be changed to
x/2 = 11 - 7 subtract 7 from each side...x/2+7-7 which is = to 11-7 ,therefore,
x/2 = 4
solving for x : multiply both sides by 2 to get x
x/2 times 2 = 2x/2... the 2's cancel out to get x
x = 4 times 2 or 8.
the answer solving for x=8.
2007-10-10 13:49:14 · answer #1 · answered by TicToc.... 7 · 0⤊ 0⤋
typing
You are gonna have to multiply the whole equation by 2 to get rid of the fraction
2 *(x/2 + 7) = 11 *(2)
Since you multiplied the whole thing by 2 the 2 in the denominator is cancelled out
x + 14 = 22
Now you need to get the x by itself
x = 8
That is your answer. Now to make sure that it is correct plug in 8 for x in the original problem
8/2 + 7 = 11
Your fraction now becomes 4 if you simplify it.
So 4 + 7 = 11
11 = 11
And everything checks out.
2007-10-10 13:36:25 · answer #2 · answered by Ms. Exxclusive 5 · 1⤊ 0⤋
nicely first, you're going to ought to finish somewhat simplifying! (optionally available, i imagine. notwithstanding it makes it a lot less stressful :) ) so that you're going to operate the like words, that are numbers that are a similar so..7d and 2d, -12 and three. First, 7d + 2d = 9d, so then the present equation could now be this : 9d -12 +3 = 18. Now upload -12 + 3. -12 + 3 = -9. cutting-edge equation: 9d - 9 = 18. NOW, you should do opposite operations. EX) 2x = 7. consequently, you may divide by using 2, because the option of 2x is divide. 9d - 9 = 18. = 9d = 27. Divide both aspect by using 9, d = 3. +9 +9 Sorry, it truly is truly puzzling yet you receives the dangle of it lol.
2016-10-09 00:02:39 · answer #3 · answered by smyers 4 · 0⤊ 0⤋
x/2 +7=11
for eliminating fraction,in the first step let us multiply both sides by 2
2x/2+2*7=2*11
x+14=22
x+14-14=22-14 [subtracting 14 from both sides]
x=8 ans
2007-10-10 13:39:52 · answer #4 · answered by alpha 7 · 1⤊ 0⤋
x/2 + 7 = 11
subtract 7 from both sides x/2 = 4
multiply both sides by 2 to get rid of the denominator, so x = 8
2007-10-10 13:37:09 · answer #5 · answered by Anonymous · 0⤊ 0⤋