10y-90+18y=-20

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Solution for 10y-90+18y=-20 equation:


Simplifying
10y + -90 + 18y = -20

Reorder the terms:
-90 + 10y + 18y = -20

Combine like terms: 10y + 18y = 28y
-90 + 28y = -20

Solving
-90 + 28y = -20

Solving for variable 'y'.

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

Add '90' to each side of the equation.
-90 + 90 + 28y = -20 + 90

Combine like terms: -90 + 90 = 0
0 + 28y = -20 + 90
28y = -20 + 90

Combine like terms: -20 + 90 = 70
28y = 70

Divide each side by '28'.
y = 2.5

Simplifying
y = 2.5

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