3(7-2x)=4-8(x-1)

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Solution for 3(7-2x)=4-8(x-1) equation:


Simplifying
3(7 + -2x) = 4 + -8(x + -1)
(7 * 3 + -2x * 3) = 4 + -8(x + -1)
(21 + -6x) = 4 + -8(x + -1)

Reorder the terms:
21 + -6x = 4 + -8(-1 + x)
21 + -6x = 4 + (-1 * -8 + x * -8)
21 + -6x = 4 + (8 + -8x)

Combine like terms: 4 + 8 = 12
21 + -6x = 12 + -8x

Solving
21 + -6x = 12 + -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.
21 + -6x + 8x = 12 + -8x + 8x

Combine like terms: -6x + 8x = 2x
21 + 2x = 12 + -8x + 8x

Combine like terms: -8x + 8x = 0
21 + 2x = 12 + 0
21 + 2x = 12

Add '-21' to each side of the equation.
21 + -21 + 2x = 12 + -21

Combine like terms: 21 + -21 = 0
0 + 2x = 12 + -21
2x = 12 + -21

Combine like terms: 12 + -21 = -9
2x = -9

Divide each side by '2'.
x = -4.5

Simplifying
x = -4.5

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