5y-1+3y-7=90

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Solution for 5y-1+3y-7=90 equation:


Simplifying
5y + -1 + 3y + -7 = 90

Reorder the terms:
-1 + -7 + 5y + 3y = 90

Combine like terms: -1 + -7 = -8
-8 + 5y + 3y = 90

Combine like terms: 5y + 3y = 8y
-8 + 8y = 90

Solving
-8 + 8y = 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 + 8y = 90 + 8

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

Combine like terms: 90 + 8 = 98
8y = 98

Divide each side by '8'.
y = 12.25

Simplifying
y = 12.25

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