If the sum of X and 20 is 8 more than the difference of 10 and Y, what is the value of x + y?
A. -2
B. 8
C. 9
D. 29
E. Can't be determine
A. -2
B. 8
C. 9
D. 29
E. Can't be determine
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Sum of X
Source: Beat The GMAT — Problem Solving |
So, putting it in an equation form:
x+20=10-y+8
Solving this equation gives us:
x+y=10-20+8=-2
Answer is A
x+20=10-y+8
Solving this equation gives us:
x+y=10-20+8=-2
Answer is A
