3y^2+7=55

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Solution for 3y^2+7=55 equation:


Simplifying
3y2 + 7 = 55

Reorder the terms:
7 + 3y2 = 55

Solving
7 + 3y2 = 55

Solving for variable 'y'.

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

Add '-7' to each side of the equation.
7 + -7 + 3y2 = 55 + -7

Combine like terms: 7 + -7 = 0
0 + 3y2 = 55 + -7
3y2 = 55 + -7

Combine like terms: 55 + -7 = 48
3y2 = 48

Divide each side by '3'.
y2 = 16

Simplifying
y2 = 16

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

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