3x+4-9-4x=12

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


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

Reorder the terms:
4 + -9 + 3x + -4x = 12

Combine like terms: 4 + -9 = -5
-5 + 3x + -4x = 12

Combine like terms: 3x + -4x = -1x
-5 + -1x = 12

Solving
-5 + -1x = 12

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + -1x = 12 + 5

Combine like terms: -5 + 5 = 0
0 + -1x = 12 + 5
-1x = 12 + 5

Combine like terms: 12 + 5 = 17
-1x = 17

Divide each side by '-1'.
x = -17

Simplifying
x = -17

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