4x+2y=18
-2(2x+3y=15)=-4x-6y=-30
-4x-6y=-30
-4y=-12
y=3
2x+3(3)=15
2x+9=15
2x=6
x=3
(3,3)
Answer:
2
Step-by-step explanation:
2.95g+9.72f=total cost
y= -5-x
-x + 5(-5-x) = -7
-x -25-5x =-7
-x-5x = 25 -7
-6x= 18
x = -3
-3 +y = -5
y= -5 +3
=-2
-(-3) + 5(-2)
3 - 10 = -7
