(M-3)=2(m+1)-1

Solution for (M-3)=2(m+1)-1 equation:

(-3)=2(M+1)-1

We move all terms to the left:

(-3)-(2(M+1)-1)=0

We add all the numbers together, and all the variables

-(2(M+1)-1)-3=0


We calculate terms in parentheses: -(2(M+1)-1), so:

2(M+1)-1

We multiply parentheses

2M+2-1

We add all the numbers together, and all the variables

2M+1

Back to the equation:

-(2M+1)


We get rid of parentheses

-2M-1-3=0

We add all the numbers together, and all the variables

-2M-4=0

We move all terms containing M to the left, all other terms to the right

-2M=4

M=4/-2

M=-2