6x+7x-54=90-5x

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Solution for 6x+7x-54=90-5x equation:


Simplifying
6x + 7x + -54 = 90 + -5x

Reorder the terms:
-54 + 6x + 7x = 90 + -5x

Combine like terms: 6x + 7x = 13x
-54 + 13x = 90 + -5x

Solving
-54 + 13x = 90 + -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
-54 + 13x + 5x = 90 + -5x + 5x

Combine like terms: 13x + 5x = 18x
-54 + 18x = 90 + -5x + 5x

Combine like terms: -5x + 5x = 0
-54 + 18x = 90 + 0
-54 + 18x = 90

Add '54' to each side of the equation.
-54 + 54 + 18x = 90 + 54

Combine like terms: -54 + 54 = 0
0 + 18x = 90 + 54
18x = 90 + 54

Combine like terms: 90 + 54 = 144
18x = 144

Divide each side by '18'.
x = 8

Simplifying
x = 8

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