15 because 3/4 is equivalent to 75% and 75% of 20 is 15.
Can you add the picture to the question?
I like the substitution method. Which is when you make one equation equal only x or y and plug it into the other equation)
There is also the graphing method. If you graphed it, it might not be quite as accurate (at least on hand, on computer you would be pretty exact)
Then there is the elimination method. You multiply one of the equations by a coefficient so that you can eliminate x or y from the equation.
Answer:
x+1
Step-by-step explanation:
just did it all you have to do is put that in and you got it write
