a-4-5-6=-1-2

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Solution for a-4-5-6=-1-2 equation:


Simplifying
a + -4 + -5 + -6 = -1 + -2

Reorder the terms:
-4 + -5 + -6 + a = -1 + -2

Combine like terms: -4 + -5 = -9
-9 + -6 + a = -1 + -2

Combine like terms: -9 + -6 = -15
-15 + a = -1 + -2

Combine like terms: -1 + -2 = -3
-15 + a = -3

Solving
-15 + a = -3

Solving for variable 'a'.

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

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

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

Combine like terms: -3 + 15 = 12
a = 12

Simplifying
a = 12

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