3(-1-7x)=-4(2x+2)

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Solution for 3(-1-7x)=-4(2x+2) equation:


Simplifying
3(-1 + -7x) = -4(2x + 2)
(-1 * 3 + -7x * 3) = -4(2x + 2)
(-3 + -21x) = -4(2x + 2)

Reorder the terms:
-3 + -21x = -4(2 + 2x)
-3 + -21x = (2 * -4 + 2x * -4)
-3 + -21x = (-8 + -8x)

Solving
-3 + -21x = -8 + -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 + -21x + 8x = -8 + -8x + 8x

Combine like terms: -21x + 8x = -13x
-3 + -13x = -8 + -8x + 8x

Combine like terms: -8x + 8x = 0
-3 + -13x = -8 + 0
-3 + -13x = -8

Add '3' to each side of the equation.
-3 + 3 + -13x = -8 + 3

Combine like terms: -3 + 3 = 0
0 + -13x = -8 + 3
-13x = -8 + 3

Combine like terms: -8 + 3 = -5
-13x = -5

Divide each side by '-13'.
x = 0.3846153846

Simplifying
x = 0.3846153846

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