25c^2-7=9

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Solution for 25c^2-7=9 equation: 


Simplifying
25c2 + -7 = 9

Reorder the terms:
-7 + 25c2 = 9

Solving
-7 + 25c2 = 9

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 + 25c2 = 9 + 7

Combine like terms: -7 + 7 = 0
0 + 25c2 = 9 + 7
25c2 = 9 + 7

Combine like terms: 9 + 7 = 16
25c2 = 16

Divide each side by '25'.
c2 = 0.64

Simplifying
c2 = 0.64

Take the square root of each side:
c = {-0.8, 0.8}

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