-7(3a-6)=126

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Solution for -7(3a-6)=126 equation:


Simplifying
-7(3a + -6) = 126

Reorder the terms:
-7(-6 + 3a) = 126
(-6 * -7 + 3a * -7) = 126
(42 + -21a) = 126

Solving
42 + -21a = 126

Solving for variable 'a'.

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

Add '-42' to each side of the equation.
42 + -42 + -21a = 126 + -42

Combine like terms: 42 + -42 = 0
0 + -21a = 126 + -42
-21a = 126 + -42

Combine like terms: 126 + -42 = 84
-21a = 84

Divide each side by '-21'.
a = -4

Simplifying
a = -4

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