Question

Find the number x and y if:
a. (2x-1, y+2)=(1,2) (you can find of only y)

b. (x-2,y/2)=(1,2) (you can find of only x)


Class:8
Step by step
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Answer 1

Answer:

Step-by-step explanation:

the value of xy is 1

x+y=2 and x²+ y²=2

then

(X+y)²= x²+2xy+y²

2²= x²+ y²+2xy

4=2+2xy

4-2=2 xy

2=2xy

Therefore xy=2/2=1

hope it helps

:)

Answer 2

Step-by-step explanation:

A) 2x-1=1

2x=1+1

2x=2

X=1

Y+2=2

Y=2-2

Y=0

B)x-2=1

X=1+2

X=3

Y/2=2

Y=2*2

Y=4