-25-2x+4x=21

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Solution for -25-2x+4x=21 equation: 


Simplifying
-25 + -2x + 4x = 21

Combine like terms: -2x + 4x = 2x
-25 + 2x = 21

Solving
-25 + 2x = 21

Solving for variable 'x'.

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

Add '25' to each side of the equation.
-25 + 25 + 2x = 21 + 25

Combine like terms: -25 + 25 = 0
0 + 2x = 21 + 25
2x = 21 + 25

Combine like terms: 21 + 25 = 46
2x = 46

Divide each side by '2'.
x = 23

Simplifying
x = 23

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