3a-6-7a=12-2a+6

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Solution for 3a-6-7a=12-2a+6 equation:


Simplifying
3a + -6 + -7a = 12 + -2a + 6

Reorder the terms:
-6 + 3a + -7a = 12 + -2a + 6

Combine like terms: 3a + -7a = -4a
-6 + -4a = 12 + -2a + 6

Reorder the terms:
-6 + -4a = 12 + 6 + -2a

Combine like terms: 12 + 6 = 18
-6 + -4a = 18 + -2a

Solving
-6 + -4a = 18 + -2a

Solving for variable 'a'.

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

Add '2a' to each side of the equation.
-6 + -4a + 2a = 18 + -2a + 2a

Combine like terms: -4a + 2a = -2a
-6 + -2a = 18 + -2a + 2a

Combine like terms: -2a + 2a = 0
-6 + -2a = 18 + 0
-6 + -2a = 18

Add '6' to each side of the equation.
-6 + 6 + -2a = 18 + 6

Combine like terms: -6 + 6 = 0
0 + -2a = 18 + 6
-2a = 18 + 6

Combine like terms: 18 + 6 = 24
-2a = 24

Divide each side by '-2'.
a = -12

Simplifying
a = -12

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