7(1-4a)=-158

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Solution for 7(1-4a)=-158 equation: 


Simplifying
7(1 + -4a) = -158
(1 * 7 + -4a * 7) = -158
(7 + -28a) = -158

Solving
7 + -28a = -158

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 = -158 + -7

Combine like terms: 7 + -7 = 0
0 + -28a = -158 + -7
-28a = -158 + -7

Combine like terms: -158 + -7 = -165
-28a = -165

Divide each side by '-28'.
a = 5.892857143

Simplifying
a = 5.892857143

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