Question

Which of the following is a solution to the equation x - 5/7 = -3/7

*2/7

*-2/7

*2

*1 1/7

Answer 1

Solve the equation:

5 3
x – —— = – ——
7 7


5
Add —— to both sides, so you get x isolated at the left-hand side:
7

5 5 3 5
x – —— + —— = – —— + ——
7 7 7 7

3 5
x = – —— + ——
7 7


Now, add those fractions at the right-hand side of the equation:

– 3 + 5
x = —————
7

2
x = —— <——— this is the answer (first option: 2/7).
7


I hope this helps. =)