12x-25=9x-4

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Solution for 12x-25=9x-4 equation:


Simplifying
12x + -25 = 9x + -4

Reorder the terms:
-25 + 12x = 9x + -4

Reorder the terms:
-25 + 12x = -4 + 9x

Solving
-25 + 12x = -4 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-25 + 12x + -9x = -4 + 9x + -9x

Combine like terms: 12x + -9x = 3x
-25 + 3x = -4 + 9x + -9x

Combine like terms: 9x + -9x = 0
-25 + 3x = -4 + 0
-25 + 3x = -4

Add '25' to each side of the equation.
-25 + 25 + 3x = -4 + 25

Combine like terms: -25 + 25 = 0
0 + 3x = -4 + 25
3x = -4 + 25

Combine like terms: -4 + 25 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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