80-3x=7x+20

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Solution for 80-3x=7x+20 equation:


Simplifying
80 + -3x = 7x + 20

Reorder the terms:
80 + -3x = 20 + 7x

Solving
80 + -3x = 20 + 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.
80 + -3x + -7x = 20 + 7x + -7x

Combine like terms: -3x + -7x = -10x
80 + -10x = 20 + 7x + -7x

Combine like terms: 7x + -7x = 0
80 + -10x = 20 + 0
80 + -10x = 20

Add '-80' to each side of the equation.
80 + -80 + -10x = 20 + -80

Combine like terms: 80 + -80 = 0
0 + -10x = 20 + -80
-10x = 20 + -80

Combine like terms: 20 + -80 = -60
-10x = -60

Divide each side by '-10'.
x = 6

Simplifying
x = 6

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