20-y-10=13-20-1

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Solution for 20-y-10=13-20-1 equation: 


Simplifying
20 + -1y + -10 = 13 + -20 + -1

Reorder the terms:
20 + -10 + -1y = 13 + -20 + -1

Combine like terms: 20 + -10 = 10
10 + -1y = 13 + -20 + -1

Combine like terms: 13 + -20 = -7
10 + -1y = -7 + -1

Combine like terms: -7 + -1 = -8
10 + -1y = -8

Solving
10 + -1y = -8

Solving for variable 'y'.

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

Add '-10' to each side of the equation.
10 + -10 + -1y = -8 + -10

Combine like terms: 10 + -10 = 0
0 + -1y = -8 + -10
-1y = -8 + -10

Combine like terms: -8 + -10 = -18
-1y = -18

Divide each side by '-1'.
y = 18

Simplifying
y = 18

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