Question

for the following system, use the second equation to make a substitution for why in the first equation. Will mark brainlyest!

2x + y = 5

y + 3 = 2x

a. 2 x + 3 - 2 x = 5
b. 2 x + 2 x - 3 = 5
c. 2 x + 2 x + 3 = 5

Answer 1

Answer:

b

Step-by-step explanation:

get y by itself in the second equation: y= 2x-3

substitute this into the y of the first equation:

2x+2x-3= 5