7x-23+5x-31=90

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Solution for 7x-23+5x-31=90 equation:


Simplifying
7x + -23 + 5x + -31 = 90

Reorder the terms:
-23 + -31 + 7x + 5x = 90

Combine like terms: -23 + -31 = -54
-54 + 7x + 5x = 90

Combine like terms: 7x + 5x = 12x
-54 + 12x = 90

Solving
-54 + 12x = 90

Solving for variable 'x'.

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

Add '54' to each side of the equation.
-54 + 54 + 12x = 90 + 54

Combine like terms: -54 + 54 = 0
0 + 12x = 90 + 54
12x = 90 + 54

Combine like terms: 90 + 54 = 144
12x = 144

Divide each side by '12'.
x = 12

Simplifying
x = 12

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