8a+-4(-5+-2)=12a

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Solution for 8a+-4(-5+-2)=12a equation:


Simplifying
8a + -4(-5 + -2) = 12a

Combine like terms: -5 + -2 = -7
8a + -4(-7) = 12a

Multiply -4 * -7
8a + 28 = 12a

Reorder the terms:
28 + 8a = 12a

Solving
28 + 8a = 12a

Solving for variable 'a'.

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

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

Combine like terms: 8a + -12a = -4a
28 + -4a = 12a + -12a

Combine like terms: 12a + -12a = 0
28 + -4a = 0

Add '-28' to each side of the equation.
28 + -28 + -4a = 0 + -28

Combine like terms: 28 + -28 = 0
0 + -4a = 0 + -28
-4a = 0 + -28

Combine like terms: 0 + -28 = -28
-4a = -28

Divide each side by '-4'.
a = 7

Simplifying
a = 7

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