Question

Solve this system of linear equations. Separate

the x- and y-values with a comma.
9x + 3y = 93
3x - 4y = 11
Fnter the correct answer

Answer 1

(9,4)

Explanation:

The given system is:

9x + 3y = 93

3x - 4y = 11

Multiply the bottom equation by 3 to get:

9x + 3y = 93

9x - 12y = 33

Subtract bottom equation from top one to get:

3y--12y=93-33

`15y = 60`

`y = (60)/(15)`

`y = 4`

We put y-value into the bottom equation:

`3x - 4 *4= 11`

`3x - 16= 11`

`3x = 11 + 15`

`3x = 27`

`x = (27)/(3)`

`x = 9`