31=7x+4(-4x-17)

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Solution for 31=7x+4(-4x-17) equation:


Simplifying
31 = 7x + 4(-4x + -17)

Reorder the terms:
31 = 7x + 4(-17 + -4x)
31 = 7x + (-17 * 4 + -4x * 4)
31 = 7x + (-68 + -16x)

Reorder the terms:
31 = -68 + 7x + -16x

Combine like terms: 7x + -16x = -9x
31 = -68 + -9x

Solving
31 = -68 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
31 + 9x = -68 + -9x + 9x

Combine like terms: -9x + 9x = 0
31 + 9x = -68 + 0
31 + 9x = -68

Add '-31' to each side of the equation.
31 + -31 + 9x = -68 + -31

Combine like terms: 31 + -31 = 0
0 + 9x = -68 + -31
9x = -68 + -31

Combine like terms: -68 + -31 = -99
9x = -99

Divide each side by '9'.
x = -11

Simplifying
x = -11

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