7+2a+-6=-9

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Solution for 7+2a+-6=-9 equation: 


Simplifying
7 + 2a + -6 = -9

Reorder the terms:
7 + -6 + 2a = -9

Combine like terms: 7 + -6 = 1
1 + 2a = -9

Solving
1 + 2a = -9

Solving for variable 'a'.

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

Add '-1' to each side of the equation.
1 + -1 + 2a = -9 + -1

Combine like terms: 1 + -1 = 0
0 + 2a = -9 + -1
2a = -9 + -1

Combine like terms: -9 + -1 = -10
2a = -10

Divide each side by '2'.
a = -5

Simplifying
a = -5

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