5a^2-3=77

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Solution for 5a^2-3=77 equation: 


Simplifying
5a2 + -3 = 77

Reorder the terms:
-3 + 5a2 = 77

Solving
-3 + 5a2 = 77

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + 3 + 5a2 = 77 + 3

Combine like terms: -3 + 3 = 0
0 + 5a2 = 77 + 3
5a2 = 77 + 3

Combine like terms: 77 + 3 = 80
5a2 = 80

Divide each side by '5'.
a2 = 16

Simplifying
a2 = 16

Take the square root of each side:
a = {-4, 4}

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