Hope this is simple enough!
It is the first answer, x=4; y=8
Set up and add equations:
4x+y=24
+ x-y=-4
So 5x=20 (the y’s cancel)
X=4
Then substitute in 4(4)+y=24
16+y=24
Y=8
Answer:
11%
Step-by-step explanation:
The equation would be 99=1200(r)(0.75). You would solve the equation to get the answer 11/100. Then you could convert it to a decimal to get 0.11, Then multiply the decimal by 100 to get 11.