Answer:
A
Step-by-step explanation:
the answer is
x+15=28
x=28-15
x= 13
A*5+b*2=145
a +b =50 | * -2
5a +2b=145
-2a -2b = -100
----------------------
5a-2a = 145-100
3a= 45
a=45:3
a=15 questions are worth 5 p
b=50-15=35 questions worth 2 p
Answer:
12-16x
Step-by-step explanation:
4(3-4x)
12-16x
The answer is x = 10/3. You just have to add 21 to both sides of this equation then simplify. Hope this helped!
