3=x+2(-4x-2)

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Solution for 3=x+2(-4x-2) equation:


Simplifying
3 = x + 2(-4x + -2)

Reorder the terms:
3 = x + 2(-2 + -4x)
3 = x + (-2 * 2 + -4x * 2)
3 = x + (-4 + -8x)

Reorder the terms:
3 = -4 + x + -8x

Combine like terms: x + -8x = -7x
3 = -4 + -7x

Solving
3 = -4 + -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.
3 + 7x = -4 + -7x + 7x

Combine like terms: -7x + 7x = 0
3 + 7x = -4 + 0
3 + 7x = -4

Add '-3' to each side of the equation.
3 + -3 + 7x = -4 + -3

Combine like terms: 3 + -3 = 0
0 + 7x = -4 + -3
7x = -4 + -3

Combine like terms: -4 + -3 = -7
7x = -7

Divide each side by '7'.
x = -1

Simplifying
x = -1

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