(7-y)-1=2

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Solution for (7-y)-1=2 equation:


Simplifying
(7 + -1y) + -1 = 2

Remove parenthesis around (7 + -1y)
7 + -1y + -1 = 2

Reorder the terms:
7 + -1 + -1y = 2

Combine like terms: 7 + -1 = 6
6 + -1y = 2

Solving
6 + -1y = 2

Solving for variable 'y'.

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

Add '-6' to each side of the equation.
6 + -6 + -1y = 2 + -6

Combine like terms: 6 + -6 = 0
0 + -1y = 2 + -6
-1y = 2 + -6

Combine like terms: 2 + -6 = -4
-1y = -4

Divide each side by '-1'.
y = 4

Simplifying
y = 4

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