25+3x-4=12x-9-4x

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Solution for 25+3x-4=12x-9-4x equation:


Simplifying
25 + 3x + -4 = 12x + -9 + -4x

Reorder the terms:
25 + -4 + 3x = 12x + -9 + -4x

Combine like terms: 25 + -4 = 21
21 + 3x = 12x + -9 + -4x

Reorder the terms:
21 + 3x = -9 + 12x + -4x

Combine like terms: 12x + -4x = 8x
21 + 3x = -9 + 8x

Solving
21 + 3x = -9 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
21 + 3x + -8x = -9 + 8x + -8x

Combine like terms: 3x + -8x = -5x
21 + -5x = -9 + 8x + -8x

Combine like terms: 8x + -8x = 0
21 + -5x = -9 + 0
21 + -5x = -9

Add '-21' to each side of the equation.
21 + -21 + -5x = -9 + -21

Combine like terms: 21 + -21 = 0
0 + -5x = -9 + -21
-5x = -9 + -21

Combine like terms: -9 + -21 = -30
-5x = -30

Divide each side by '-5'.
x = 6

Simplifying
x = 6

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