91=7x+7(2x-11)

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Solution for 91=7x+7(2x-11) equation:


Simplifying
91 = 7x + 7(2x + -11)

Reorder the terms:
91 = 7x + 7(-11 + 2x)
91 = 7x + (-11 * 7 + 2x * 7)
91 = 7x + (-77 + 14x)

Reorder the terms:
91 = -77 + 7x + 14x

Combine like terms: 7x + 14x = 21x
91 = -77 + 21x

Solving
91 = -77 + 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.
91 + -21x = -77 + 21x + -21x

Combine like terms: 21x + -21x = 0
91 + -21x = -77 + 0
91 + -21x = -77

Add '-91' to each side of the equation.
91 + -91 + -21x = -77 + -91

Combine like terms: 91 + -91 = 0
0 + -21x = -77 + -91
-21x = -77 + -91

Combine like terms: -77 + -91 = -168
-21x = -168

Divide each side by '-21'.
x = 8

Simplifying
x = 8

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