7-y=3

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Solution for 7-y=3 equation: 


Simplifying
7 + -1y = 3

Solving
7 + -1y = 3

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 = 3 + -7

Combine like terms: 7 + -7 = 0
0 + -1y = 3 + -7
-1y = 3 + -7

Combine like terms: 3 + -7 = -4
-1y = -4

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

Simplifying
y = 4

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