Question

Which of these shows the result of using the first equation to substitute for y in the second equation, then combining like terms?

y=2x
2x+3y+16

A: 8x=16
B:4x=16
C:5y=16
D:6x=16

Answer 1

Step 1: Substitute y into the second equation 2x+3(2x)+16
Step 2: Add like terms
2x+6x+16= 8x+16
The answer would be A