3c^2-7=5

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Solution for 3c^2-7=5 equation: 


Simplifying
3c2 + -7 = 5

Reorder the terms:
-7 + 3c2 = 5

Solving
-7 + 3c2 = 5

Solving for variable 'c'.

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

Add '7' to each side of the equation.
-7 + 7 + 3c2 = 5 + 7

Combine like terms: -7 + 7 = 0
0 + 3c2 = 5 + 7
3c2 = 5 + 7

Combine like terms: 5 + 7 = 12
3c2 = 12

Divide each side by '3'.
c2 = 4

Simplifying
c2 = 4

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

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