10-3x-9x=7

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Solution for 10-3x-9x=7 equation: 


Simplifying
10 + -3x + -9x = 7

Combine like terms: -3x + -9x = -12x
10 + -12x = 7

Solving
10 + -12x = 7

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + -12x = 7 + -10

Combine like terms: 10 + -10 = 0
0 + -12x = 7 + -10
-12x = 7 + -10

Combine like terms: 7 + -10 = -3
-12x = -3

Divide each side by '-12'.
x = 0.25

Simplifying
x = 0.25

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