(6x-12)+(3x+30)=90

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Solution for (6x-12)+(3x+30)=90 equation:


Simplifying
(6x + -12) + (3x + 30) = 90

Reorder the terms:
(-12 + 6x) + (3x + 30) = 90

Remove parenthesis around (-12 + 6x)
-12 + 6x + (3x + 30) = 90

Reorder the terms:
-12 + 6x + (30 + 3x) = 90

Remove parenthesis around (30 + 3x)
-12 + 6x + 30 + 3x = 90

Reorder the terms:
-12 + 30 + 6x + 3x = 90

Combine like terms: -12 + 30 = 18
18 + 6x + 3x = 90

Combine like terms: 6x + 3x = 9x
18 + 9x = 90

Solving
18 + 9x = 90

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 9x = 90 + -18

Combine like terms: 18 + -18 = 0
0 + 9x = 90 + -18
9x = 90 + -18

Combine like terms: 90 + -18 = 72
9x = 72

Divide each side by '9'.
x = 8

Simplifying
x = 8

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