Question 1190044
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The two equations are
7m+2w = 110
3m+3w = 60


For the first equation we have
7m = total wages from the 7 men
2w = total wages from the 2 women
7m+2w = total wages of the nine people mentioned
So that's how we end up with 7m+2w = 110


The second equation follows a very similar idea
3m = total wages from the 3 men
3w = total wages from the 3 women
3m+3w = total wages of the six people mentioned
Then that is set equal to 60 to finish things off.
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