Question

If the ordered pairs (x - 1, y + 3)and (2, x + 4)are equal, find x and y.
a) 1.4
b) 3.4
c)3.7
d) 3.2​

Answer 1

Answer:

x-1,y+3=x+4,2.

so x-1-x+4 = y-3+2.

3=y-1y=2

x-1,y+3=x+4,2

x-1,2+3=x+4,2

x-1,5=x+4,2

2x=3

x=3/2

x+y =1.5+2=3.5. it is close to 3.4 so answer should be b)3.4