2(y+9)2=90

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Solution for 2(y+9)2=90 equation: 


Simplifying
2(y + 9) * 2 = 90

Reorder the terms:
2(9 + y) * 2 = 90

Reorder the terms for easier multiplication:
2 * 2(9 + y) = 90

Multiply 2 * 2
4(9 + y) = 90
(9 * 4 + y * 4) = 90
(36 + 4y) = 90

Solving
36 + 4y = 90

Solving for variable 'y'.

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

Add '-36' to each side of the equation.
36 + -36 + 4y = 90 + -36

Combine like terms: 36 + -36 = 0
0 + 4y = 90 + -36
4y = 90 + -36

Combine like terms: 90 + -36 = 54
4y = 54

Divide each side by '4'.
y = 13.5

Simplifying
y = 13.5

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