-6=-8-3a-7

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Solution for -6=-8-3a-7 equation:


Simplifying
-6 = -8 + -3a + -7

Reorder the terms:
-6 = -8 + -7 + -3a

Combine like terms: -8 + -7 = -15
-6 = -15 + -3a

Solving
-6 = -15 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
-6 + 3a = -15 + -3a + 3a

Combine like terms: -3a + 3a = 0
-6 + 3a = -15 + 0
-6 + 3a = -15

Add '6' to each side of the equation.
-6 + 6 + 3a = -15 + 6

Combine like terms: -6 + 6 = 0
0 + 3a = -15 + 6
3a = -15 + 6

Combine like terms: -15 + 6 = -9
3a = -9

Divide each side by '3'.
a = -3

Simplifying
a = -3

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