Answer:40.85
Step-by-step explanation:
43x5/100=2.15
43-2.15= 40.85
(3a) - (8a) = -5a
2b + b = 3b
-5a + 3b
You just have to plug in the value of x and y.
1) y = 2x + 10 —> y = 2(4) + 10
y = 8 + 10
y = 18
2) y = 2x - 4 —> 10 = 2x - 4
add four to both sides
14 = 2x and divide 2 by both sides and you get x = 7
