3x-40=x+40

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Solution for 3x-40=x+40 equation:


Simplifying
3x + -40 = x + 40

Reorder the terms:
-40 + 3x = x + 40

Reorder the terms:
-40 + 3x = 40 + x

Solving
-40 + 3x = 40 + 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.
-40 + 3x + -1x = 40 + x + -1x

Combine like terms: 3x + -1x = 2x
-40 + 2x = 40 + x + -1x

Combine like terms: x + -1x = 0
-40 + 2x = 40 + 0
-40 + 2x = 40

Add '40' to each side of the equation.
-40 + 40 + 2x = 40 + 40

Combine like terms: -40 + 40 = 0
0 + 2x = 40 + 40
2x = 40 + 40

Combine like terms: 40 + 40 = 80
2x = 80

Divide each side by '2'.
x = 40

Simplifying
x = 40

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