3x+12+2x+9=86

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Solution for 3x+12+2x+9=86 equation:


Simplifying
3x + 12 + 2x + 9 = 86

Reorder the terms:
12 + 9 + 3x + 2x = 86

Combine like terms: 12 + 9 = 21
21 + 3x + 2x = 86

Combine like terms: 3x + 2x = 5x
21 + 5x = 86

Solving
21 + 5x = 86

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 5x = 86 + -21

Combine like terms: 21 + -21 = 0
0 + 5x = 86 + -21
5x = 86 + -21

Combine like terms: 86 + -21 = 65
5x = 65

Divide each side by '5'.
x = 13

Simplifying
x = 13

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