Question

How to solve using Substitution or Elimination??? Help!!
y=3x-1

y=2x+2

Answer 1

`x=3`

`y=8`

Explanation:

From these two equations, we can substitute the first equation into the second equation (or the other way round). This gives us:

`3x-1=2x+2`

`3x-2x=2+1` (minus
`2x` and add
`1` on both sides)

`x=3`

To solve for
`y`, we can use substitution again:

`y = 3(3)-1` (using the first equation given)

`y=8`

Hope this helps :)

Answer 2

Explanation:

Since both equations equals y, then both equations equal each other.

3x - 1 = 2x + 2

Subtract 2x from both sides

x - 1 = 2

Add 1 to both sides

x = 3

Plug x = 3 into one equation(doesn't matter which)

y = 3x - 1

y = 3(3) - 1

y = 9 - 1

y = 8