Question

If 1/x+ 1/y= 1/4 and 1/x-1/y=3/4, then x=

A) 1/4
B) 1/2
C) 2
D) 4

SOMEONE PLEASE HELP!!!!

Answer 1

C) 2

Explanation:

1/x+ 1/y= 1/4 and 1/x-1/y=3/4

Add the two equations together

1/x+ 1/y= 1/4

1/x-1/y=3/4

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2/x = 4/4

2/x =1

Multiply each side by x

2/x *x = 1x

2 =x