1. X + 1/3 = 3/4
2. X – 2/5 = 5/7
3. -X – 2/3 = -6/7
4. 4/7 – x = 1/3
5. X – 1/2 = -2/3
6. 2/7 – X = -3/4
7. -X – (-7/2) = -3/5
8. 1/3 – (-x) = -2/5
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D. 4
1. X + 1/3 = 3/4
2. X – 2/5 = 5/7
3. -X – 2/3 = -6/7
4. 4/7 – x = 1/3
5. X – 1/2 = -2/3
6. 2/7 – X = -3/4
7. -X – (-7/2) = -3/5
8. 1/3 – (-x) = -2/5
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D. 4
`1) x + 1/3 = 3/4`
`x = 3/4 – 1/3`
`x = 9/12 – 4/12`
`x = 5/12`
—————————————-
`2) x – 2/5 = 5/7`
`x = 5/7 + 2/5`
`x = 25/35 + 14/35`
`x = 39/35`
————————————————-
`3) -x – 2/3 = -6/7`
`-x = -6/7 + 2/3`
`-x = -4/21`
⇒ `x = 4/21`
—————————————————–
`4) 4/7 – x = 1/3`
`x = 4/7 – 1/3`
`x = 12/21 – 7/21`
`x = 5/21`
——————————————————
`5) x – 1/2 = -2/3`
`x = -2/3 + 1/2`
`x = -4/6 + 3/6`
`x = -1/6`
——————————————————
`6) 2/7 – x = -3/4`
`x = 2/7 – \frac{-3}{4}`
`x = 8/14 – \frac{-21}{14}`
`x = 29/14`
————————————————–
`7) -x – ( -7/2) = -3/5`
`-x = -3/5 + (-7/2)`
`-x = -41/10`
⇒ `x = 41/10`
——————————————————-
`8) 1/3 – (-x) = -2/5`
`1/3 + x = -2/5`
`x = -2/5 – 1/3`
`x = -11/15`
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