M1=69-2x

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Solution for M1=69-2x equation: 



1=69-2M

We move all terms to the left:

1-(69-2M)=0

We add all the numbers together, and all the variables

-(-2M+69)+1=0

We get rid of parentheses

2M-69+1=0

We add all the numbers together, and all the variables

2M-68=0

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

2M=68

M=68/2

M=34

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