7(-4a+1)=91

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


Simplifying
7(-4a + 1) = 91

Reorder the terms:
7(1 + -4a) = 91
(1 * 7 + -4a * 7) = 91
(7 + -28a) = 91

Solving
7 + -28a = 91

Solving for variable 'a'.

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

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

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

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

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

Simplifying
a = -3

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