If w+2x+y=10 and 2w+2x+2y=10, what is the value of x?

A)5

B)10

C)15

D)20

E)25

*w* + *y* must be 0–that’s the only way you could double it and not change the overall sum. Therefore, 2*x* = 10, and *x* = 5.

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If w+2x+y=10 and 2w+2x+2y=10, what is the value of x?

A)5

B)10

C)15

D)20

E)25

*w* + *y* must be 0–that’s the only way you could double it and not change the overall sum. Therefore, 2*x* = 10, and *x* = 5.