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wat is 7(x-3) = 56

2007-01-24 11:55:35 · 20 answers · asked by Nicole M 1 in Science & Mathematics Geography

20 answers

56/7 = 8
x-3 = 8
8 + 3 = 11
x = 11

7(11-3)=56

X = 11

2007-01-24 12:04:02 · answer #1 · answered by uncle_beer78 3 · 0 0

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 · answer #2 · answered by Anonymous · 0 0

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 · answer #3 · answered by davidinark 5 · 0 0

56 / 7 plus 3= X
Parentheses first, then the multiplication.

Good luck

2007-01-24 12:02:39 · answer #4 · answered by Anonymous · 0 0

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 · answer #5 · answered by tommyguard3 3 · 1 0

x=11

2007-01-24 12:01:44 · answer #6 · answered by Luis B 2 · 0 0

7(x-3)=56
7x-21=56
+21 +21
7x=77
x= 11

2007-01-24 12:00:21 · answer #7 · answered by Brent S 1 · 0 0

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 · answer #8 · answered by NubbY 4 · 0 0

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 · answer #9 · answered by Anonymous · 0 1

56/7 = 8

11-3 = 8

X = 11

2007-01-24 12:01:19 · answer #10 · answered by laurenkolskizzle69 1 · 0 2

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