91=7x+3(-5x+9)

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Solution for 91=7x+3(-5x+9) equation:


Simplifying
91 = 7x + 3(-5x + 9)

Reorder the terms:
91 = 7x + 3(9 + -5x)
91 = 7x + (9 * 3 + -5x * 3)
91 = 7x + (27 + -15x)

Reorder the terms:
91 = 27 + 7x + -15x

Combine like terms: 7x + -15x = -8x
91 = 27 + -8x

Solving
91 = 27 + -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.
91 + 8x = 27 + -8x + 8x

Combine like terms: -8x + 8x = 0
91 + 8x = 27 + 0
91 + 8x = 27

Add '-91' to each side of the equation.
91 + -91 + 8x = 27 + -91

Combine like terms: 91 + -91 = 0
0 + 8x = 27 + -91
8x = 27 + -91

Combine like terms: 27 + -91 = -64
8x = -64

Divide each side by '8'.
x = -8

Simplifying
x = -8

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