40=8(-1-7x)+4(-3x-5)

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Solution for 40=8(-1-7x)+4(-3x-5) equation:


Simplifying
40 = 8(-1 + -7x) + 4(-3x + -5)
40 = (-1 * 8 + -7x * 8) + 4(-3x + -5)
40 = (-8 + -56x) + 4(-3x + -5)

Reorder the terms:
40 = -8 + -56x + 4(-5 + -3x)
40 = -8 + -56x + (-5 * 4 + -3x * 4)
40 = -8 + -56x + (-20 + -12x)

Reorder the terms:
40 = -8 + -20 + -56x + -12x

Combine like terms: -8 + -20 = -28
40 = -28 + -56x + -12x

Combine like terms: -56x + -12x = -68x
40 = -28 + -68x

Solving
40 = -28 + -68x

Solving for variable 'x'.

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

Add '68x' to each side of the equation.
40 + 68x = -28 + -68x + 68x

Combine like terms: -68x + 68x = 0
40 + 68x = -28 + 0
40 + 68x = -28

Add '-40' to each side of the equation.
40 + -40 + 68x = -28 + -40

Combine like terms: 40 + -40 = 0
0 + 68x = -28 + -40
68x = -28 + -40

Combine like terms: -28 + -40 = -68
68x = -68

Divide each side by '68'.
x = -1

Simplifying
x = -1

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