Question

solve the linear system using substitution.
y=2x-1
2x+y=3

Answer 1

y=2x-1 <---equation 1
2x+y=3 <---equation 2

E1 tells us the value of y so plug it into e2
\[\huge~\rm~\bf~2x+2x-1=3\]

Answer 2

Solve for x

Answer 3

so x=1

Answer 4

and y=1

Answer 5

Perfect! Well done ^_^

Answer 6

thank you, but can you help me with 6 or so more?

Answer 7

Post them on different posts.

Answer 8

ok