very simplebkobilov wrote:What is the logic behind this problem?
it means you have to add numbers together
4+x=1 >x=-3
4+y=-5 >> y=-9
4+z=m
e+z=10
e+x=7 or e=10
e+y=n =10-9=1 thus n=1
since e+z=10 and e=10 so z=0 so m=4
m+n=5
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Gmatprep1 question
Source: Beat The GMAT — Problem Solving |
it means you have to add numbers together
4+x=1 >x=-3
4+y=-5 >> y=-9
4+z=m
e+z=10
e+x=7 or e=10
e+y=n =10-9=1 thus n=1
since e+z=10 and e=10 so z=0 so m=4
m+n=5
