Question

What is the correct first step in solving the system of equations below using the substitution method?

{y=4x+2
{3x−2y=1
answer options
A.3x−2(4x+2)=1

B.3x−(4x+2)=1

C.3(4x+2)−2y=1

D.3x−2(6x)=1

Answer 1

y=4x+2 ____ (1)

3x-2y=1 ____(2)

Now substitute y in 2nd equation

3x-2(4x+2) =1

So,

option A is the correct answer