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
The OA is the option _B_
Source: Official Guide
If the sum of 5, 8, 12, and 15 is equal to the sum of 3, 4,
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$$5+8+12+15=3+4+x+x+3$$
$$40=10+2x$$
$$40-10=2x$$
$$\frac{30}{2}=\frac{2x}{2}$$
$$x=15$$
$$answer\ is\ Option\ B$$
$$40=10+2x$$
$$40-10=2x$$
$$\frac{30}{2}=\frac{2x}{2}$$
$$x=15$$
$$answer\ is\ Option\ B$$
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We can create the equation:M7MBA wrote: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
The OA is the option _B_
Source: Official Guide
5 + 8 + 12 + 15 = 3 + 4 + x + x + 3
40 = 10 + 2x
30 = 2x
15 = x
Answer: B
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