-42=8(5-7x)-6(x-7)

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Solution for -42=8(5-7x)-6(x-7) equation:


Simplifying
-42 = 8(5 + -7x) + -6(x + -7)
-42 = (5 * 8 + -7x * 8) + -6(x + -7)
-42 = (40 + -56x) + -6(x + -7)

Reorder the terms:
-42 = 40 + -56x + -6(-7 + x)
-42 = 40 + -56x + (-7 * -6 + x * -6)
-42 = 40 + -56x + (42 + -6x)

Reorder the terms:
-42 = 40 + 42 + -56x + -6x

Combine like terms: 40 + 42 = 82
-42 = 82 + -56x + -6x

Combine like terms: -56x + -6x = -62x
-42 = 82 + -62x

Solving
-42 = 82 + -62x

Solving for variable 'x'.

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

Add '62x' to each side of the equation.
-42 + 62x = 82 + -62x + 62x

Combine like terms: -62x + 62x = 0
-42 + 62x = 82 + 0
-42 + 62x = 82

Add '42' to each side of the equation.
-42 + 42 + 62x = 82 + 42

Combine like terms: -42 + 42 = 0
0 + 62x = 82 + 42
62x = 82 + 42

Combine like terms: 82 + 42 = 124
62x = 124

Divide each side by '62'.
x = 2

Simplifying
x = 2

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