25+2x-4=20

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Solution for 25+2x-4=20 equation:


Simplifying
25 + 2x + -4 = 20

Reorder the terms:
25 + -4 + 2x = 20

Combine like terms: 25 + -4 = 21
21 + 2x = 20

Solving
21 + 2x = 20

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 + 2x = 20 + -21

Combine like terms: 21 + -21 = 0
0 + 2x = 20 + -21
2x = 20 + -21

Combine like terms: 20 + -21 = -1
2x = -1

Divide each side by '2'.
x = -0.5

Simplifying
x = -0.5

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