Find the solution to the following system of equations?

Question

x+5y=-3
-3x+3y=9

help plzzz.

Answer 1

x+5y=-3 <-- Eq 1
-3x+3y=9 <-- Eq 2
3x+15y = -9 <-- Eq 3 = 3 * Eq 1
18y =0 <-- Eq 2 + Eq 3
y=0
x+5(0)=-3
x = -3

Answer 2

y= 0
x=-3

just multiply the first equation with 3 so you'll get
3x+15y=-9

now sommate the first with the seccond so you'll get

3x+15y-3x+3y=-9+9

18y=0 so y=0

now fill that in in the first equeation
x+0=-3 so x=-3

Answer 3

x+5y=-3 .......... equation 1
-3x+3y=9............. simplify by dividing by 3
-x+y=3..............equation 2


from equation 2
-x+y=3
y=3+x...............equation 3
subistitute in equation 1
x+ 5*(3+x)=-3
x+15+5x=-3
6x=-18
x=-3

from eq 3
y=3+x
y=0