a^2-7=-3

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Solution for a^2-7=-3 equation: 


Simplifying
a2 + -7 = -3

Reorder the terms:
-7 + a2 = -3

Solving
-7 + a2 = -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 + a2 = -3 + 7

Combine like terms: -7 + 7 = 0
0 + a2 = -3 + 7
a2 = -3 + 7

Combine like terms: -3 + 7 = 4
a2 = 4

Simplifying
a2 = 4

Take the square root of each side:
a = {-2, 2}

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