Question

How many solutions does the system have 2x+ 3y=-3 and 3xbravo+5y=-9

Answer 1

We have the following two equations given:

2x + 3y = -3

We can solve for x and we got:

`x=(-3-3y)/(2)`

We can replace into the second equation and we got:

`3((-3-3y)/(2))+5y=-9`

And solving for y we got:

`-(9)/(2)-(9)/(2)y+5y=-9`

then the value of y would be:

`y=2\cdot(-(9)/(2))=-9`

And solving for x we got:

`x=(-3-3(-9))/(2)=12`