91=7(1-4x)

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Solution for 91=7(1-4x) equation:


Simplifying
91 = 7(1 + -4x)
91 = (1 * 7 + -4x * 7)
91 = (7 + -28x)

Solving
91 = 7 + -28x

Solving for variable 'x'.

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

Add '28x' to each side of the equation.
91 + 28x = 7 + -28x + 28x

Combine like terms: -28x + 28x = 0
91 + 28x = 7 + 0
91 + 28x = 7

Add '-91' to each side of the equation.
91 + -91 + 28x = 7 + -91

Combine like terms: 91 + -91 = 0
0 + 28x = 7 + -91
28x = 7 + -91

Combine like terms: 7 + -91 = -84
28x = -84

Divide each side by '28'.
x = -3

Simplifying
x = -3

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