12(-1a+42)=-12(-7a+6)

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Solution for 12(-1a+42)=-12(-7a+6) equation:


Simplifying
12(-1a + 42) = -12(-7a + 6)

Reorder the terms:
12(42 + -1a) = -12(-7a + 6)
(42 * 12 + -1a * 12) = -12(-7a + 6)
(504 + -12a) = -12(-7a + 6)

Reorder the terms:
504 + -12a = -12(6 + -7a)
504 + -12a = (6 * -12 + -7a * -12)
504 + -12a = (-72 + 84a)

Solving
504 + -12a = -72 + 84a

Solving for variable 'a'.

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

Add '-84a' to each side of the equation.
504 + -12a + -84a = -72 + 84a + -84a

Combine like terms: -12a + -84a = -96a
504 + -96a = -72 + 84a + -84a

Combine like terms: 84a + -84a = 0
504 + -96a = -72 + 0
504 + -96a = -72

Add '-504' to each side of the equation.
504 + -504 + -96a = -72 + -504

Combine like terms: 504 + -504 = 0
0 + -96a = -72 + -504
-96a = -72 + -504

Combine like terms: -72 + -504 = -576
-96a = -576

Divide each side by '-96'.
a = 6

Simplifying
a = 6

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