(5x-12)+(x+54)=90

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Solution for (5x-12)+(x+54)=90 equation:


Simplifying
(5x + -12) + (x + 54) = 90

Reorder the terms:
(-12 + 5x) + (x + 54) = 90

Remove parenthesis around (-12 + 5x)
-12 + 5x + (x + 54) = 90

Reorder the terms:
-12 + 5x + (54 + x) = 90

Remove parenthesis around (54 + x)
-12 + 5x + 54 + x = 90

Reorder the terms:
-12 + 54 + 5x + x = 90

Combine like terms: -12 + 54 = 42
42 + 5x + x = 90

Combine like terms: 5x + x = 6x
42 + 6x = 90

Solving
42 + 6x = 90

Solving for variable 'x'.

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

Add '-42' to each side of the equation.
42 + -42 + 6x = 90 + -42

Combine like terms: 42 + -42 = 0
0 + 6x = 90 + -42
6x = 90 + -42

Combine like terms: 90 + -42 = 48
6x = 48

Divide each side by '6'.
x = 8

Simplifying
x = 8

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