2y+7Y-18=90

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Solution for 2y+7Y-18=90 equation: 


Simplifying
2y + 7Y + -18 = 90

Reorder the terms:
-18 + 7Y + 2y = 90

Solving
-18 + 7Y + 2y = 90

Solving for variable 'Y'.

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

Add '18' to each side of the equation.
-18 + 7Y + 18 + 2y = 90 + 18

Reorder the terms:
-18 + 18 + 7Y + 2y = 90 + 18

Combine like terms: -18 + 18 = 0
0 + 7Y + 2y = 90 + 18
7Y + 2y = 90 + 18

Combine like terms: 90 + 18 = 108
7Y + 2y = 108

Add '-2y' to each side of the equation.
7Y + 2y + -2y = 108 + -2y

Combine like terms: 2y + -2y = 0
7Y + 0 = 108 + -2y
7Y = 108 + -2y

Divide each side by '7'.
Y = 15.42857143 + -0.2857142857y

Simplifying
Y = 15.42857143 + -0.2857142857y

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