15=7-10y

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Solution for 15=7-10y equation:


Simplifying
15 = 7 + -10y

Solving
15 = 7 + -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.
15 + 10y = 7 + -10y + 10y

Combine like terms: -10y + 10y = 0
15 + 10y = 7 + 0
15 + 10y = 7

Add '-15' to each side of the equation.
15 + -15 + 10y = 7 + -15

Combine like terms: 15 + -15 = 0
0 + 10y = 7 + -15
10y = 7 + -15

Combine like terms: 7 + -15 = -8
10y = -8

Divide each side by '10'.
y = -0.8

Simplifying
y = -0.8

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