-3(1+7a)=124

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Solution for -3(1+7a)=124 equation: 


Simplifying
-3(1 + 7a) = 124
(1 * -3 + 7a * -3) = 124
(-3 + -21a) = 124

Solving
-3 + -21a = 124

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + 3 + -21a = 124 + 3

Combine like terms: -3 + 3 = 0
0 + -21a = 124 + 3
-21a = 124 + 3

Combine like terms: 124 + 3 = 127
-21a = 127

Divide each side by '-21'.
a = -6.047619048

Simplifying
a = -6.047619048

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