Here we multiply the 2nd eqation with -1 and then add both
and answer is
-6y=12
The answer would be 85, here's why
200/x=100/42.5
(200/x)*x=(100/42.5)*x
200=2.3529411764706*x
200/2.3529411764706=x
85=x
x=85
Plug in the given numbers (x) to the equation.
For example, let's take the first value it gives us.
-10(-2) +y=4
20+y=4
y=-16
Then you would put that on the table, and plug in the next value(s).
Hope this helped!
Your deck is bigger because it’s 3 and 2/3 and your neighbor is 3 and 8/9 your deck is bigger because 2/3 are bigger then 8/9