25+5x=3x+21

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Solution for 25+5x=3x+21 equation:


Simplifying
25 + 5x = 3x + 21

Reorder the terms:
25 + 5x = 21 + 3x

Solving
25 + 5x = 21 + 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 + 5x + -3x = 21 + 3x + -3x

Combine like terms: 5x + -3x = 2x
25 + 2x = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
25 + 2x = 21 + 0
25 + 2x = 21

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 = -4
2x = -4

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

Simplifying
x = -2

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