3x-5=20+x

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Solution for 3x-5=20+x equation:


Simplifying
3x + -5 = 20 + x

Reorder the terms:
-5 + 3x = 20 + x

Solving
-5 + 3x = 20 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-5 + 3x + -1x = 20 + x + -1x

Combine like terms: 3x + -1x = 2x
-5 + 2x = 20 + x + -1x

Combine like terms: x + -1x = 0
-5 + 2x = 20 + 0
-5 + 2x = 20

Add '5' to each side of the equation.
-5 + 5 + 2x = 20 + 5

Combine like terms: -5 + 5 = 0
0 + 2x = 20 + 5
2x = 20 + 5

Combine like terms: 20 + 5 = 25
2x = 25

Divide each side by '2'.
x = 12.5

Simplifying
x = 12.5

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