(2y+5)+(78-11)=90

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Solution for (2y+5)+(78-11)=90 equation:


Simplifying
(2y + 5) + (78 + -11) = 90

Reorder the terms:
(5 + 2y) + (78 + -11) = 90

Remove parenthesis around (5 + 2y)
5 + 2y + (78 + -11) = 90

Combine like terms: 78 + -11 = 67
5 + 2y + (67) = 90
5 + 2y + 67 = 90

Reorder the terms:
5 + 67 + 2y = 90

Combine like terms: 5 + 67 = 72
72 + 2y = 90

Solving
72 + 2y = 90

Solving for variable 'y'.

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

Add '-72' to each side of the equation.
72 + -72 + 2y = 90 + -72

Combine like terms: 72 + -72 = 0
0 + 2y = 90 + -72
2y = 90 + -72

Combine like terms: 90 + -72 = 18
2y = 18

Divide each side by '2'.
y = 9

Simplifying
y = 9

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