7x+9-2x=10x-12

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Solution for 7x+9-2x=10x-12 equation:


Simplifying
7x + 9 + -2x = 10x + -12

Reorder the terms:
9 + 7x + -2x = 10x + -12

Combine like terms: 7x + -2x = 5x
9 + 5x = 10x + -12

Reorder the terms:
9 + 5x = -12 + 10x

Solving
9 + 5x = -12 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
9 + 5x + -10x = -12 + 10x + -10x

Combine like terms: 5x + -10x = -5x
9 + -5x = -12 + 10x + -10x

Combine like terms: 10x + -10x = 0
9 + -5x = -12 + 0
9 + -5x = -12

Add '-9' to each side of the equation.
9 + -9 + -5x = -12 + -9

Combine like terms: 9 + -9 = 0
0 + -5x = -12 + -9
-5x = -12 + -9

Combine like terms: -12 + -9 = -21
-5x = -21

Divide each side by '-5'.
x = 4.2

Simplifying
x = 4.2

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