4(2a+7)=12-8a

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Solution for 4(2a+7)=12-8a equation:


Simplifying
4(2a + 7) = 12 + -8a

Reorder the terms:
4(7 + 2a) = 12 + -8a
(7 * 4 + 2a * 4) = 12 + -8a
(28 + 8a) = 12 + -8a

Solving
28 + 8a = 12 + -8a

Solving for variable 'a'.

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

Add '8a' to each side of the equation.
28 + 8a + 8a = 12 + -8a + 8a

Combine like terms: 8a + 8a = 16a
28 + 16a = 12 + -8a + 8a

Combine like terms: -8a + 8a = 0
28 + 16a = 12 + 0
28 + 16a = 12

Add '-28' to each side of the equation.
28 + -28 + 16a = 12 + -28

Combine like terms: 28 + -28 = 0
0 + 16a = 12 + -28
16a = 12 + -28

Combine like terms: 12 + -28 = -16
16a = -16

Divide each side by '16'.
a = -1

Simplifying
a = -1

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