Answer:

Step-by-step explanation:
The given expresion is

We multiply through by 8 to get:

We cancel out to obtain:

We simplify to obtain:

Answer:
1: (4,1) x=4 y=1
2: (1,10) x=1 y=10
3: (-25/4,5) x= -25/4 y=5
Step-by-step explanation:
It would be a lot to explain all three so if you really need it just ask
Answer:
The Maximum score = 4 points don't mean you get four coins, it's just on the paper.
Step-by-step explanation:
Answer:
I won't solve it, because you asked me to.
Step-by-step explanation:
The first question we should ask ourselves is "what are we looking to solve?"
We are looking for some sort of value that satisfies that equation. We'll call it x
Reading from left to right:
The sum of twice a number and 13 is 75
+ 2 x 13 = 75
2x + 13 = 75
The third one, 40-45 because the difference of the rest are 4, while that one is 5.