y-7+8=13

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Solution for y-7+8=13 equation: 


Simplifying
y + -7 + 8 = 13

Reorder the terms:
-7 + 8 + y = 13

Combine like terms: -7 + 8 = 1
1 + y = 13

Solving
1 + y = 13

Solving for variable 'y'.

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

Add '-1' to each side of the equation.
1 + -1 + y = 13 + -1

Combine like terms: 1 + -1 = 0
0 + y = 13 + -1
y = 13 + -1

Combine like terms: 13 + -1 = 12
y = 12

Simplifying
y = 12

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