-5=-7+a

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Solution for -5=-7+a equation:


Simplifying
-5 = -7 + a

Solving
-5 = -7 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-5 + -1a = -7 + a + -1a

Combine like terms: a + -1a = 0
-5 + -1a = -7 + 0
-5 + -1a = -7

Add '5' to each side of the equation.
-5 + 5 + -1a = -7 + 5

Combine like terms: -5 + 5 = 0
0 + -1a = -7 + 5
-1a = -7 + 5

Combine like terms: -7 + 5 = -2
-1a = -2

Divide each side by '-1'.
a = 2

Simplifying
a = 2

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