Question

Solve, using the substitution method.
y – 2x = 8
16 + 4x = 2y

Answer 1

Isolate \(\rm \large y\) in the first equation to start with.

Answer 2

im confused idk how to do anything

Answer 3

Google how to use the substitution method.

Answer 4

i did and i dont understand

Answer 5

Do you want an example?

Answer 6

ok yeah

Answer 7

2x-y=16
-x+2y=-8

Answer 8

For example, you have this:\[\rm y - 2 = x \\ 3y +1 = 4x -7\]First, you have to find what \(\rm \large y\) equals in terms of \(\rm x\).

You can write the first equation as \(\rm \large y = x + 2\)

Answer 9

tthat was the equation im trying to get an answer to

Answer 10

Since \(\large\rm y = x + 2 \), you can write the second equation as\[\rm \large 3(x + 2) + 1 = 4x - 7\]

Answer 11

where did u get 4 from ?

Answer 12

It's my sample equation.

Answer 13

@shscheer Did You Get It ?

Answer 14

no but is it like this 2x-y=16
-x+2y=-8
-4x+2y=-16
4x-2=16
-4x+2y=-16
4x-2y=16
0,0?

Answer 15

Lets Start Over :)

Answer 16

ok :)

Answer 17

Solve, using the substitution method.

2x – 3y = –2
4x + y = 24

Answer 18

^^ We Are Going To Use This as a sample question to understand :)

Answer 19

se i dont know how to do any of this i need someone to go step by stepwith me

Answer 20

Well I Am Gonna Go Step By Step Dont Worry

Answer 21

The idea here is to solve one of the equations for one of the variables, and plug this into the other equation. It does not matter which equation you pick first

Answer 22

Do You Get it till here

Answer 23

@shscheer

Answer 24

yes because u plugged in the numbers for the variables right?