25+y^2=100

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Solution for 25+y^2=100 equation: 


Simplifying
25 + y2 = 100

Solving
25 + y2 = 100

Solving for variable 'y'.

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

Add '-25' to each side of the equation.
25 + -25 + y2 = 100 + -25

Combine like terms: 25 + -25 = 0
0 + y2 = 100 + -25
y2 = 100 + -25

Combine like terms: 100 + -25 = 75
y2 = 75

Simplifying
y2 = 75

Take the square root of each side:
y = {-8.660254038, 8.660254038}

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