30=-10y

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Solution for 30=-10y equation:


Simplifying
30 = -10y

Solving
30 = -10y

Solving for variable 'y'.

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

Add '10y' to each side of the equation.
30 + 10y = -10y + 10y

Combine like terms: -10y + 10y = 0
30 + 10y = 0

Add '-30' to each side of the equation.
30 + -30 + 10y = 0 + -30

Combine like terms: 30 + -30 = 0
0 + 10y = 0 + -30
10y = 0 + -30

Combine like terms: 0 + -30 = -30
10y = -30

Divide each side by '10'.
y = -3

Simplifying
y = -3

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