7-y=30

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Solution for 7-y=30 equation: 


Simplifying
7 + -1y = 30

Solving
7 + -1y = 30

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 + -1y = 30 + -7

Combine like terms: 7 + -7 = 0
0 + -1y = 30 + -7
-1y = 30 + -7

Combine like terms: 30 + -7 = 23
-1y = 23

Divide each side by '-1'.
y = -23

Simplifying
y = -23

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