-18a+12=20-20a+8

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Solution for -18a+12=20-20a+8 equation:


Simplifying
-18a + 12 = 20 + -20a + 8

Reorder the terms:
12 + -18a = 20 + -20a + 8

Reorder the terms:
12 + -18a = 20 + 8 + -20a

Combine like terms: 20 + 8 = 28
12 + -18a = 28 + -20a

Solving
12 + -18a = 28 + -20a

Solving for variable 'a'.

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

Add '20a' to each side of the equation.
12 + -18a + 20a = 28 + -20a + 20a

Combine like terms: -18a + 20a = 2a
12 + 2a = 28 + -20a + 20a

Combine like terms: -20a + 20a = 0
12 + 2a = 28 + 0
12 + 2a = 28

Add '-12' to each side of the equation.
12 + -12 + 2a = 28 + -12

Combine like terms: 12 + -12 = 0
0 + 2a = 28 + -12
2a = 28 + -12

Combine like terms: 28 + -12 = 16
2a = 16

Divide each side by '2'.
a = 8

Simplifying
a = 8

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