Question

Solve the system by graphing. x + y = 27 and y=x+3. The solution is ( , ).​

Answer 1

X=12 Y=15

Explanation:

X+Y=27 (1)

Y=X+3 (2)

substitute (2) into (1)

X+X+3=27

2X=24

X=12

substitute X=12 into (2)

Y=12+3

Y=15