-10y+18=-15y+21-5y

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Solution for -10y+18=-15y+21-5y equation: 


Simplifying
-10y + 18 = -15y + 21 + -5y

Reorder the terms:
18 + -10y = -15y + 21 + -5y

Reorder the terms:
18 + -10y = 21 + -15y + -5y

Combine like terms: -15y + -5y = -20y
18 + -10y = 21 + -20y

Solving
18 + -10y = 21 + -20y

Solving for variable 'y'.

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

Add '20y' to each side of the equation.
18 + -10y + 20y = 21 + -20y + 20y

Combine like terms: -10y + 20y = 10y
18 + 10y = 21 + -20y + 20y

Combine like terms: -20y + 20y = 0
18 + 10y = 21 + 0
18 + 10y = 21

Add '-18' to each side of the equation.
18 + -18 + 10y = 21 + -18

Combine like terms: 18 + -18 = 0
0 + 10y = 21 + -18
10y = 21 + -18

Combine like terms: 21 + -18 = 3
10y = 3

Divide each side by '10'.
y = 0.3

Simplifying
y = 0.3

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