Question

M - 1 = 2 what do I need to do to solve.

Answer 1

In order to solve this, start by adding 1 to both sides of the equation.

m-1=2

+1 +1

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m=3

The solution to your equation is 3.

You can also check to see if this is true by replacing m with 3.

m-1=2

3-1=2