80-30=3x-8x

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Solution for 80-30=3x-8x equation:


Simplifying
80 + -30 = 3x + -8x

Combine like terms: 80 + -30 = 50
50 = 3x + -8x

Combine like terms: 3x + -8x = -5x
50 = -5x

Solving
50 = -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
50 + 5x = -5x + 5x

Combine like terms: -5x + 5x = 0
50 + 5x = 0

Add '-50' to each side of the equation.
50 + -50 + 5x = 0 + -50

Combine like terms: 50 + -50 = 0
0 + 5x = 0 + -50
5x = 0 + -50

Combine like terms: 0 + -50 = -50
5x = -50

Divide each side by '5'.
x = -10

Simplifying
x = -10

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