GMAT Prep
If the sum of 5, 8, 12, and 15 is equal to the sum of 3, 4, x, and x+3, what is the value of x?
A. 14
B. 15
C. 16
D. 17
E. 18
OA B
If the sum of 5, 8, 12, and 15 is equal to the sum of 3, 4, x, and x+3, what is the value of x?
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Given: 5 + 8 + 12 + 15 = 3 + 4 + x + (x+3)
Simplify: 40 = 2x + 10
Subtract 10 from both sides: 30 = 2x
Divide both sides by 2: 15 = x
Answer: B