y+3+7y-9=90

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Solution for y+3+7y-9=90 equation:


Simplifying
y + 3 + 7y + -9 = 90

Reorder the terms:
3 + -9 + y + 7y = 90

Combine like terms: 3 + -9 = -6
-6 + y + 7y = 90

Combine like terms: y + 7y = 8y
-6 + 8y = 90

Solving
-6 + 8y = 90

Solving for variable 'y'.

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

Add '6' to each side of the equation.
-6 + 6 + 8y = 90 + 6

Combine like terms: -6 + 6 = 0
0 + 8y = 90 + 6
8y = 90 + 6

Combine like terms: 90 + 6 = 96
8y = 96

Divide each side by '8'.
y = 12

Simplifying
y = 12

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