Respuesta :
assuming they equal y
y=3x+3
y=-5x+7
set eqal to each other since both equal y
3x+3=-5x+7
add 5x both sides
8x+3=7
minus 3 both sides
8x=4
divide by 8 both sides
x=1/2
sub back
3x+3=y
3(1/2)+3=y
1.5+3=y
4.5=y
9/2=y
x=1/2
y=9/2
(1/2,9/2) is soltuion
y=3x+3
y=-5x+7
set eqal to each other since both equal y
3x+3=-5x+7
add 5x both sides
8x+3=7
minus 3 both sides
8x=4
divide by 8 both sides
x=1/2
sub back
3x+3=y
3(1/2)+3=y
1.5+3=y
4.5=y
9/2=y
x=1/2
y=9/2
(1/2,9/2) is soltuion