Question

6) x-1/2=9/2

7) x+5/4=-3/4

8) x+2/7=5/7

9) x-4/3=1/3

10) x+5/2=-7/2

Answer 1

6, \(x=\dfrac{9}{2}+\dfrac{1}{2}=\dfrac{10}{2}=5\)

7, \(x=-\dfrac{3}{4}-\dfrac{5}{4}=-\dfrac{8}{4}=-2\)

8, \(x=\dfrac{5}{7}-\dfrac{2}{7}=\dfrac{3}{7}\)

9, \(x=\dfrac{1}{3}+\dfrac{4}{3}=\dfrac{5}{3}\)

10, \(x=-\dfrac{7}{2}-\dfrac{5}{2}=-\dfrac{12}{2}=-6\)

Answer 2

\(6,x-\dfrac{1}{2}=\dfrac{9}{2}\Leftrightarrow x=5\)

\(7,x+\dfrac{5}{4}=\dfrac{-3}{4}\Leftrightarrow x=-2\)

\(8,x+\dfrac{2}{7}=\dfrac{5}{7}\Leftrightarrow x=\dfrac{3}{7}\)

\(9,x-\dfrac{4}{3}=\dfrac{1}{3}\Leftrightarrow x=\dfrac{5}{3}\)

\(10,x+\dfrac{5}{2}=\dfrac{-7}{2}\Leftrightarrow x=-6\)

Answer 3

\(x-\dfrac{1}{2}=\dfrac{9}{2}\)

\(x\)        \(=\dfrac{9}{2}+\dfrac{1}{2}=\dfrac{10}{2}=5\)

\(x+\dfrac{5}{4}=\dfrac{-3}{4}\)

\(x\)        \(=\dfrac{-3}{4}+\dfrac{-5}{4}=\dfrac{-8}{4}=-2\)

\(x+\dfrac{2}{7}=\dfrac{5}{7}\)

\(x\)        \(=\dfrac{5}{7}+\dfrac{-2}{7}=\dfrac{3}{7}\)

\(x-\dfrac{4}{3}=\dfrac{1}{3}\)

\(x\)         \(=\dfrac{1}{3}+\dfrac{4}{3}=\dfrac{5}{3}\)

\(x+\dfrac{5}{2}=\dfrac{-7}{2}\)

\(x\)        \(=\dfrac{-7}{2}+\dfrac{-5}{2}=\dfrac{-12}{2}=-6\)