-7-a=-3

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Solution for -7-a=-3 equation: 


Simplifying
-7 + -1a = -3

Solving
-7 + -1a = -3

Solving for variable 'a'.

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

Add '7' to each side of the equation.
-7 + 7 + -1a = -3 + 7

Combine like terms: -7 + 7 = 0
0 + -1a = -3 + 7
-1a = -3 + 7

Combine like terms: -3 + 7 = 4
-1a = 4

Divide each side by '-1'.
a = -4

Simplifying
a = -4

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