7x-40=2x+55

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Solution for 7x-40=2x+55 equation:


Simplifying
7x + -40 = 2x + 55

Reorder the terms:
-40 + 7x = 2x + 55

Reorder the terms:
-40 + 7x = 55 + 2x

Solving
-40 + 7x = 55 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-40 + 7x + -2x = 55 + 2x + -2x

Combine like terms: 7x + -2x = 5x
-40 + 5x = 55 + 2x + -2x

Combine like terms: 2x + -2x = 0
-40 + 5x = 55 + 0
-40 + 5x = 55

Add '40' to each side of the equation.
-40 + 40 + 5x = 55 + 40

Combine like terms: -40 + 40 = 0
0 + 5x = 55 + 40
5x = 55 + 40

Combine like terms: 55 + 40 = 95
5x = 95

Divide each side by '5'.
x = 19

Simplifying
x = 19

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