47-y=40

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Solution for 47-y=40 equation:


Simplifying
47 + -1y = 40

Solving
47 + -1y = 40

Solving for variable 'y'.

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

Add '-47' to each side of the equation.
47 + -47 + -1y = 40 + -47

Combine like terms: 47 + -47 = 0
0 + -1y = 40 + -47
-1y = 40 + -47

Combine like terms: 40 + -47 = -7
-1y = -7

Divide each side by '-1'.
y = 7

Simplifying
y = 7

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