72=-2(8x+7)+5(1-x)

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Solution for 72=-2(8x+7)+5(1-x) equation:


Simplifying
72 = -2(8x + 7) + 5(1 + -1x)

Reorder the terms:
72 = -2(7 + 8x) + 5(1 + -1x)
72 = (7 * -2 + 8x * -2) + 5(1 + -1x)
72 = (-14 + -16x) + 5(1 + -1x)
72 = -14 + -16x + (1 * 5 + -1x * 5)
72 = -14 + -16x + (5 + -5x)

Reorder the terms:
72 = -14 + 5 + -16x + -5x

Combine like terms: -14 + 5 = -9
72 = -9 + -16x + -5x

Combine like terms: -16x + -5x = -21x
72 = -9 + -21x

Solving
72 = -9 + -21x

Solving for variable 'x'.

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

Add '21x' to each side of the equation.
72 + 21x = -9 + -21x + 21x

Combine like terms: -21x + 21x = 0
72 + 21x = -9 + 0
72 + 21x = -9

Add '-72' to each side of the equation.
72 + -72 + 21x = -9 + -72

Combine like terms: 72 + -72 = 0
0 + 21x = -9 + -72
21x = -9 + -72

Combine like terms: -9 + -72 = -81
21x = -81

Divide each side by '21'.
x = -3.857142857

Simplifying
x = -3.857142857

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