Question

How do I solve this?

Answer 1

(x,y) (-3,4)

Explanation:

Answer 2

Answer:
`x = -3` and
`y = 4`

Explanation:

`2x+5y = 14` ....................... equation 1

`6x+7y = 10` ....................... equation 2

Using elimination method

multiply equation 1 by (3) and equation 2 by (1)

Then we have:

`6x + 15y = 42` .................. equation 3

`6x + 7y = 10` ................... equation 4

subtract equation 4 from equation 3 , we have

`8y = 32`

divide through by 8

`y = 4`

substitute
`y = 4` into equation 1 to get the value of x

that is :

`2x + 5(4) = 14`

`2x + 20 = 14`

`2x = 14 - 20`

`2x = -6`

`x = -3`

Therefore:

`x = -3` and
`y = 4`