7(x-8)+2(x-8)=18

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Solution for 7(x-8)+2(x-8)=18 equation:


Simplifying
7(x + -8) + 2(x + -8) = 18

Reorder the terms:
7(-8 + x) + 2(x + -8) = 18
(-8 * 7 + x * 7) + 2(x + -8) = 18
(-56 + 7x) + 2(x + -8) = 18

Reorder the terms:
-56 + 7x + 2(-8 + x) = 18
-56 + 7x + (-8 * 2 + x * 2) = 18
-56 + 7x + (-16 + 2x) = 18

Reorder the terms:
-56 + -16 + 7x + 2x = 18

Combine like terms: -56 + -16 = -72
-72 + 7x + 2x = 18

Combine like terms: 7x + 2x = 9x
-72 + 9x = 18

Solving
-72 + 9x = 18

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '72' to each side of the equation.
-72 + 72 + 9x = 18 + 72

Combine like terms: -72 + 72 = 0
0 + 9x = 18 + 72
9x = 18 + 72

Combine like terms: 18 + 72 = 90
9x = 90

Divide each side by '9'.
x = 10

Simplifying
x = 10

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