-m-2(-6m-6)=89

Question

how to solve a equation:   -m-2(-6m-6)=89

Answer 1

Step 1: Take everything out of parentheses; To do that multiply -2 with -6m and -6; 

-m+12m+12=89          

Step 2: Group all variables in one side and numbers on the other; Remember to change signs when changing sides 

-m+12m=89-12      

11m=77

Step 3: Solve for the unknown variable (m); To do that divide both sides by 11 because you want the unknown to be alone with no coefficient in front of it. 

m=77/11=7

 

Hope this helps! 

 

 

Answer 2

-m+12m+12=89

 

11m=89-12

 

m=77/11

 

m=11