42-25=m

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Solution for 42-25=m equation:


Simplifying
42 + -25 = m

Combine like terms: 42 + -25 = 17
17 = m

Solving
17 = m

Solving for variable 'm'.

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

Add '-1m' to each side of the equation.
17 + -1m = m + -1m

Combine like terms: m + -1m = 0
17 + -1m = 0

Add '-17' to each side of the equation.
17 + -17 + -1m = 0 + -17

Combine like terms: 17 + -17 = 0
0 + -1m = 0 + -17
-1m = 0 + -17

Combine like terms: 0 + -17 = -17
-1m = -17

Divide each side by '-1'.
m = 17

Simplifying
m = 17

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