43-4=y

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Solution for 43-4=y equation:


Simplifying
43 + -4 = y

Combine like terms: 43 + -4 = 39
39 = y

Solving
39 = y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
39 + -1y = y + -1y

Combine like terms: y + -1y = 0
39 + -1y = 0

Add '-39' to each side of the equation.
39 + -39 + -1y = 0 + -39

Combine like terms: 39 + -39 = 0
0 + -1y = 0 + -39
-1y = 0 + -39

Combine like terms: 0 + -39 = -39
-1y = -39

Divide each side by '-1'.
y = 39

Simplifying
y = 39

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