(3x+12)+(5x)=90

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Solution for (3x+12)+(5x)=90 equation:


Simplifying
(3x + 12) + (5x) = 90

Reorder the terms:
(12 + 3x) + (5x) = 90

Remove parenthesis around (12 + 3x)
12 + 3x + (5x) = 90

Combine like terms: 3x + (5x) = 8x
12 + 8x = 90

Solving
12 + 8x = 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 + 8x = 90 + -12

Combine like terms: 12 + -12 = 0
0 + 8x = 90 + -12
8x = 90 + -12

Combine like terms: 90 + -12 = 78
8x = 78

Divide each side by '8'.
x = 9.75

Simplifying
x = 9.75

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