Respuesta :
y=3x+7 Set it to equal 0
3x+7=0 Solve (Get x by itself)
-7 -7
3x=-7
/3 /3
x= -7/3
Same thing for other one
3x+7=0 Solve (Get x by itself)
-7 -7
3x=-7
/3 /3
x= -7/3
Same thing for other one