x+12+9x=40

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Solution for x+12+9x=40 equation:


Simplifying
x + 12 + 9x = 40

Reorder the terms:
12 + x + 9x = 40

Combine like terms: x + 9x = 10x
12 + 10x = 40

Solving
12 + 10x = 40

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 10x = 40 + -12

Combine like terms: 12 + -12 = 0
0 + 10x = 40 + -12
10x = 40 + -12

Combine like terms: 40 + -12 = 28
10x = 28

Divide each side by '10'.
x = 2.8

Simplifying
x = 2.8

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