73.3k views
2 votes
7/2x+1/2x = 18+ 9/2x

User Epatel
by
4.8k points

1 Answer

3 votes

Answer:

x=-36

Explanation:

Add the 7/2x +1/2x to be 8/2x which means that it'll be 4x=18=9/2

then subtract 9/2x on both sides so itll be


4x=18+(9)/(2) x

-9/2x -9/2x


-(1)/(2) x=18 because if you do 8/2-9/2 it's -1/2

then multiply the reciprocal to both sides so


((2)/(-1))(-(1)/(2)x)=((2)/(-1))(18)

which then cancels out -1/2 and makes it

x=-36

User Ostap Hnatyuk
by
5.4k points