7x-2x-70=80

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Solution for 7x-2x-70=80 equation:


Simplifying
7x + -2x + -70 = 80

Reorder the terms:
-70 + 7x + -2x = 80

Combine like terms: 7x + -2x = 5x
-70 + 5x = 80

Solving
-70 + 5x = 80

Solving for variable 'x'.

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

Add '70' to each side of the equation.
-70 + 70 + 5x = 80 + 70

Combine like terms: -70 + 70 = 0
0 + 5x = 80 + 70
5x = 80 + 70

Combine like terms: 80 + 70 = 150
5x = 150

Divide each side by '5'.
x = 30

Simplifying
x = 30

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