(8x+7)+(9x-4)=90

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Solution for (8x+7)+(9x-4)=90 equation:


Simplifying
(8x + 7) + (9x + -4) = 90

Reorder the terms:
(7 + 8x) + (9x + -4) = 90

Remove parenthesis around (7 + 8x)
7 + 8x + (9x + -4) = 90

Reorder the terms:
7 + 8x + (-4 + 9x) = 90

Remove parenthesis around (-4 + 9x)
7 + 8x + -4 + 9x = 90

Reorder the terms:
7 + -4 + 8x + 9x = 90

Combine like terms: 7 + -4 = 3
3 + 8x + 9x = 90

Combine like terms: 8x + 9x = 17x
3 + 17x = 90

Solving
3 + 17x = 90

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 17x = 90 + -3

Combine like terms: 3 + -3 = 0
0 + 17x = 90 + -3
17x = 90 + -3

Combine like terms: 90 + -3 = 87
17x = 87

Divide each side by '17'.
x = 5.117647059

Simplifying
x = 5.117647059

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