Question

Solve for x: 7 over 8 minus 1 over x equals 3 over 4.

x = 1

x = 2

x = 4

x = 8

Answer 1

try keeping the terms with the x on one side, and everything else on the other side:
\[ \frac{7}{8}-\frac{1}{x}=\frac{3}{4}\\
\, \\
-\frac{1}{x}=\frac{3}{4}-\frac{7}{8}\\
\, \\
-\frac{1}{x}=\frac{6}{8}-\frac{7}{8}=-\frac{1}{8}\]

Then, what you can do, is divide both sides by -1 (to get rod of the negative). Then you can easily see that you get 1/x = 1/8, and so only one number can be in the denominator (since both numerators are the same)

Answer 2

get rid*

Answer 3

so its x=8 ?

Answer 4

yes