-3x-40=-7x+80

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Solution for -3x-40=-7x+80 equation:


Simplifying
-3x + -40 = -7x + 80

Reorder the terms:
-40 + -3x = -7x + 80

Reorder the terms:
-40 + -3x = 80 + -7x

Solving
-40 + -3x = 80 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-40 + -3x + 7x = 80 + -7x + 7x

Combine like terms: -3x + 7x = 4x
-40 + 4x = 80 + -7x + 7x

Combine like terms: -7x + 7x = 0
-40 + 4x = 80 + 0
-40 + 4x = 80

Add '40' to each side of the equation.
-40 + 40 + 4x = 80 + 40

Combine like terms: -40 + 40 = 0
0 + 4x = 80 + 40
4x = 80 + 40

Combine like terms: 80 + 40 = 120
4x = 120

Divide each side by '4'.
x = 30

Simplifying
x = 30

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