2=8a-12-7a-4

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


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

Reorder the terms:
2 = -12 + -4 + 8a + -7a

Combine like terms: -12 + -4 = -16
2 = -16 + 8a + -7a

Combine like terms: 8a + -7a = 1a
2 = -16 + 1a

Solving
2 = -16 + 1a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
2 + -1a = -16 + 1a + -1a

Combine like terms: 1a + -1a = 0
2 + -1a = -16 + 0
2 + -1a = -16

Add '-2' to each side of the equation.
2 + -2 + -1a = -16 + -2

Combine like terms: 2 + -2 = 0
0 + -1a = -16 + -2
-1a = -16 + -2

Combine like terms: -16 + -2 = -18
-1a = -18

Divide each side by '-1'.
a = 18

Simplifying
a = 18

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