56/7 = 8
x-3 = 8
8 + 3 = 11
x = 11
7(11-3)=56
X = 11
2007-01-24 12:04:02
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answer #1
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answered by uncle_beer78 3
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7x^3-56 Factor out a 7. 7(x^3-8) Factor the difference of cubes. The final answer is: 7(x-2)(x^2+2x+4) To the person above: the question is asking for a factored version. You're not supposed to solve for x.
2016-05-24 05:49:17
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answer #2
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answered by Anonymous
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What does this have to do with Geography?
If you want the 'long' way to do this:
7(X-3)=56 (so you distribute)
7X-21=56 (then add 21 to each side)
7X-21+21=56+21 (then simplify)
7X=77 (then divide by 7)
X=11
2007-01-24 12:04:08
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answer #3
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answered by davidinark 5
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56 / 7 plus 3= X
Parentheses first, then the multiplication.
Good luck
2007-01-24 12:02:39
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answer #4
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answered by Anonymous
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7(x-3)=56
7x-21=56 - expand the bracket by multiplying the inside by the
outside
7x=56+21- add 21 to both sides to isolate x
x=77/7 - divide both sides by 7 to isolate x
x=11
2007-01-24 12:01:57
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answer #5
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answered by tommyguard3 3
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x=11
2007-01-24 12:01:44
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answer #6
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answered by Luis B 2
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7(x-3)=56
7x-21=56
+21 +21
7x=77
x= 11
2007-01-24 12:00:21
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answer #7
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answered by Brent S 1
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7(x-3)=56
7x-21=56
7x-21+21=56+21
7x=77
then divide 7 on both sides which is x=77/7
x=11
2007-01-24 12:04:44
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answer #8
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answered by NubbY 4
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first of all its spelled what and this is how u do it
7(x-3)=56
7x-21=56
+21 +21
7x=77
/7 /7
x=11
2007-01-24 12:02:49
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answer #9
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answered by Anonymous
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56/7 = 8
11-3 = 8
X = 11
2007-01-24 12:01:19
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answer #10
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answered by laurenkolskizzle69 1
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