13x-66=90

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Solution for 13x-66=90 equation: 


Simplifying
13x + -66 = 90

Reorder the terms:
-66 + 13x = 90

Solving
-66 + 13x = 90

Solving for variable 'x'.

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

Add '66' to each side of the equation.
-66 + 66 + 13x = 90 + 66

Combine like terms: -66 + 66 = 0
0 + 13x = 90 + 66
13x = 90 + 66

Combine like terms: 90 + 66 = 156
13x = 156

Divide each side by '13'.
x = 12

Simplifying
x = 12

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