2x+21+3x-4x=

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Solution for 2x+21+3x-4x= equation:


Simplifying
2x + 21 + 3x + -4x = 0

Reorder the terms:
21 + 2x + 3x + -4x = 0

Combine like terms: 2x + 3x = 5x
21 + 5x + -4x = 0

Combine like terms: 5x + -4x = 1x
21 + 1x = 0

Solving
21 + 1x = 0

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 1x = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 1x = 0 + -21
1x = 0 + -21

Combine like terms: 0 + -21 = -21
1x = -21

Divide each side by '1'.
x = -21

Simplifying
x = -21

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