3x+x+13=89

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Solution for 3x+x+13=89 equation:


Simplifying
3x + x + 13 = 89

Reorder the terms:
13 + 3x + x = 89

Combine like terms: 3x + x = 4x
13 + 4x = 89

Solving
13 + 4x = 89

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 4x = 89 + -13

Combine like terms: 13 + -13 = 0
0 + 4x = 89 + -13
4x = 89 + -13

Combine like terms: 89 + -13 = 76
4x = 76

Divide each side by '4'.
x = 19

Simplifying
x = 19

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