3x-25+9x-4x=3x+20

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Solution for 3x-25+9x-4x=3x+20 equation:


Simplifying
3x + -25 + 9x + -4x = 3x + 20

Reorder the terms:
-25 + 3x + 9x + -4x = 3x + 20

Combine like terms: 3x + 9x = 12x
-25 + 12x + -4x = 3x + 20

Combine like terms: 12x + -4x = 8x
-25 + 8x = 3x + 20

Reorder the terms:
-25 + 8x = 20 + 3x

Solving
-25 + 8x = 20 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-25 + 8x + -3x = 20 + 3x + -3x

Combine like terms: 8x + -3x = 5x
-25 + 5x = 20 + 3x + -3x

Combine like terms: 3x + -3x = 0
-25 + 5x = 20 + 0
-25 + 5x = 20

Add '25' to each side of the equation.
-25 + 25 + 5x = 20 + 25

Combine like terms: -25 + 25 = 0
0 + 5x = 20 + 25
5x = 20 + 25

Combine like terms: 20 + 25 = 45
5x = 45

Divide each side by '5'.
x = 9

Simplifying
x = 9

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