-9+3x+3x+4x=12

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Solution for -9+3x+3x+4x=12 equation:


Simplifying
-9 + 3x + 3x + 4x = 12

Combine like terms: 3x + 3x = 6x
-9 + 6x + 4x = 12

Combine like terms: 6x + 4x = 10x
-9 + 10x = 12

Solving
-9 + 10x = 12

Solving for variable 'x'.

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

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

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

Combine like terms: 12 + 9 = 21
10x = 21

Divide each side by '10'.
x = 2.1

Simplifying
x = 2.1

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