7y+8=90

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Solution for 7y+8=90 equation: 


Simplifying
7y + 8 = 90

Reorder the terms:
8 + 7y = 90

Solving
8 + 7y = 90

Solving for variable 'y'.

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

Add '-8' to each side of the equation.
8 + -8 + 7y = 90 + -8

Combine like terms: 8 + -8 = 0
0 + 7y = 90 + -8
7y = 90 + -8

Combine like terms: 90 + -8 = 82
7y = 82

Divide each side by '7'.
y = 11.71428571

Simplifying
y = 11.71428571

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