(7x+8)+(9x-8)=128

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Solution for (7x+8)+(9x-8)=128 equation:


Simplifying
(7x + 8) + (9x + -8) = 128

Reorder the terms:
(8 + 7x) + (9x + -8) = 128

Remove parenthesis around (8 + 7x)
8 + 7x + (9x + -8) = 128

Reorder the terms:
8 + 7x + (-8 + 9x) = 128

Remove parenthesis around (-8 + 9x)
8 + 7x + -8 + 9x = 128

Reorder the terms:
8 + -8 + 7x + 9x = 128

Combine like terms: 8 + -8 = 0
0 + 7x + 9x = 128
7x + 9x = 128

Combine like terms: 7x + 9x = 16x
16x = 128

Solving
16x = 128

Solving for variable 'x'.

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

Divide each side by '16'.
x = 8

Simplifying
x = 8

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