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

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


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

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

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

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

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

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

Combine like terms: 8 + 4 = 12
12 + 9x + 4x = 90

Combine like terms: 9x + 4x = 13x
12 + 13x = 90

Solving
12 + 13x = 90

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 13x = 90 + -12

Combine like terms: 12 + -12 = 0
0 + 13x = 90 + -12
13x = 90 + -12

Combine like terms: 90 + -12 = 78
13x = 78

Divide each side by '13'.
x = 6

Simplifying
x = 6

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