7=10-y

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Solution for 7=10-y equation:


Simplifying
7 = 10 + -1y

Solving
7 = 10 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
7 + y = 10 + -1y + y

Combine like terms: -1y + y = 0
7 + y = 10 + 0
7 + y = 10

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

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

Combine like terms: 10 + -7 = 3
y = 3

Simplifying
y = 3

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