30=2(10-y)

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Solution for 30=2(10-y) equation:


Simplifying
30 = 2(10 + -1y)
30 = (10 * 2 + -1y * 2)
30 = (20 + -2y)

Solving
30 = 20 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
30 + 2y = 20 + -2y + 2y

Combine like terms: -2y + 2y = 0
30 + 2y = 20 + 0
30 + 2y = 20

Add '-30' to each side of the equation.
30 + -30 + 2y = 20 + -30

Combine like terms: 30 + -30 = 0
0 + 2y = 20 + -30
2y = 20 + -30

Combine like terms: 20 + -30 = -10
2y = -10

Divide each side by '2'.
y = -5

Simplifying
y = -5

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