-138+4x+9x=83

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Solution for -138+4x+9x=83 equation: 


Simplifying
-138 + 4x + 9x = 83

Combine like terms: 4x + 9x = 13x
-138 + 13x = 83

Solving
-138 + 13x = 83

Solving for variable 'x'.

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

Add '138' to each side of the equation.
-138 + 138 + 13x = 83 + 138

Combine like terms: -138 + 138 = 0
0 + 13x = 83 + 138
13x = 83 + 138

Combine like terms: 83 + 138 = 221
13x = 221

Divide each side by '13'.
x = 17

Simplifying
x = 17

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