(8x-9)+(7x+9)=90

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Solution for (8x-9)+(7x+9)=90 equation:


Simplifying
(8x + -9) + (7x + 9) = 90

Reorder the terms:
(-9 + 8x) + (7x + 9) = 90

Remove parenthesis around (-9 + 8x)
-9 + 8x + (7x + 9) = 90

Reorder the terms:
-9 + 8x + (9 + 7x) = 90

Remove parenthesis around (9 + 7x)
-9 + 8x + 9 + 7x = 90

Reorder the terms:
-9 + 9 + 8x + 7x = 90

Combine like terms: -9 + 9 = 0
0 + 8x + 7x = 90
8x + 7x = 90

Combine like terms: 8x + 7x = 15x
15x = 90

Solving
15x = 90

Solving for variable 'x'.

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

Divide each side by '15'.
x = 6

Simplifying
x = 6

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