SOLUTION: I need help with this problem i don't understand how to get the answer.(michael is 12 years older than lynn. The sum of lynn's and michaels age is 84. How old is micheal?) thank yo

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Question 1080693: I need help with this problem i don't understand how to get the answer.(michael is 12 years older than lynn. The sum of lynn's and michaels age is 84. How old is micheal?) thank you in advance for your help.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.M=L%2B12 ... michael is 12 years older than lynn
2.M%2BL=84 ... The sum of lynn's and michaels age is 84
Substituting 1 into 2,
%28L%2B12%29%2BL=84
2L%2B12=84
2L=72
Solve for L then use either equation to solve for M.