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. 5x=16

Answer 1

A. 8x=16

Step-by-step explanation

The given equations are:

1st equation: y=2x

2nd equation: 2x+3y=16

We substitute the first equation into the second equation to get:

2x+3(2x)=16

This implies that:

2x+6x=16

We combine like terms to get:

8x=16

The correct choice is A. 8x=16