Question

How do you solve the system y=3x and 2x+y=15 using substitution?

Answer 1

Answer:

x = 3

y = 9

Step-by-step explanation:

y = 3x ---------------->1

2x + y = 15 ------------------->2

2x + 3x  = 15 (subsitute y value)

5x = 15

x = 15/5

x = 3

subsitute x value in  equ 1

y = 3x

y = 3 * 3

y = 9

please mark as brainliest