y-(-7)=10

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Solution for y-(-7)=10 equation: 


Simplifying
y + -1(-7) = 10

Multiply -1 * -7
y + 7 = 10

Reorder the terms:
7 + y = 10

Solving
7 + y = 10

Solving for variable 'y'.

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

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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