Question

the linear equation 5x-y=2x-1 has​

Answer 1

Answer:

5x-3y=-1 and y=2x

I believe this requires application of a concept called substitution.

Let's begin with...

5x-3y=-1

Because y=2x, we can substitute...

(5x)-3(2x)=-1

5x-6x=-1

-x=-1

x=1

Let's plug this in and establish y...

5(1)-3y=-1 and y=2(1)

5-3y=-1 and y=2

-3y=-6

y=2