Steven is three times as old as jenny. the sum of their ages is 63. let s be steven’s age and j be jenny’s age. select the system of equations that represent the problem?

( a) s=3j

s+j=63

(b) s=j+3

s+j=63

(c) s=3j

sj=63

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right

- (2, -7)

- lines r and s and lines t and u must be parallel