Question

Find the solution of the system of equations.
10x+10y=40
5x+3y=8

Answer 1

x = -2 & y = 6

Explanation:

`10x+10y=40`

`10x+10y+ -10y=40+-10y`

`10x=-10y+40`

`(10x)/(10) =(-10y+40)/(10)`

`x=-y+4`

`5x+3y=8`

`5(-y+4)+3y=8`

`-2y+20=8`

`-2y+20+-20=8+-20`

`-2y=-12`

`/2`

`y=6`

`x=-y+4`

`x=-6+4`

`x=-2`

Hope this helps.