3-(-2x)=-8x+20

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Solution for 3-(-2x)=-8x+20 equation:


Simplifying
3 + -1(-2x) = -8x + 20

Remove parenthesis around (-2x)
3 + -1 * -2x = -8x + 20

Multiply -1 * -2
3 + 2x = -8x + 20

Reorder the terms:
3 + 2x = 20 + -8x

Solving
3 + 2x = 20 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
3 + 2x + 8x = 20 + -8x + 8x

Combine like terms: 2x + 8x = 10x
3 + 10x = 20 + -8x + 8x

Combine like terms: -8x + 8x = 0
3 + 10x = 20 + 0
3 + 10x = 20

Add '-3' to each side of the equation.
3 + -3 + 10x = 20 + -3

Combine like terms: 3 + -3 = 0
0 + 10x = 20 + -3
10x = 20 + -3

Combine like terms: 20 + -3 = 17
10x = 17

Divide each side by '10'.
x = 1.7

Simplifying
x = 1.7

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