First simplify:
15h/5h becomes 3 (because 15h & 5h are divisible by 5h)
3+10h/5h+25/5h=x+y+5/h
10h/5h becomes 2 (because 10h & 5h are divisible by 5h)
3+2+25/5h=x+y+5/h
25/5h becomes 5/h (because 25 & 5 are divisible by 5)
3+2+5/h=x+y+5/h
Add 3+2=5
5+5/h=x+y+5/h
subtract -5/h from both sides, which cancel's each one out.
5=x+y
Now depending on whether you are solving for x or y, subtract the opposite, leaving the one you are solving for left by itself, as the one you subtract will cancel itself out on the right side.
5-y=x or x=5-y
or
5-x=y or y=5-x
Answer:
wrong language
Step-by-step explanation:
took test
1.45 x 10^-7 isn't in scientific notation because if it's negative, the decimal starts before the first real number, right?
x= 7/4 - 3/4
you just have to subtract on variable and then put it on the other side, eventually you will have to divide it all by 4, which you can't do, so it ends up as a fraction:)