Question

Solve the equation. Then check your solution.

Answer 1

Step-by-step explanation:

4/5+x=3/7

x=3/7-4/5

x=15-28/35

x= -13/35 option D

Answer 2

Answer:

(d) -13/35

Step-by-step explanation:

$\cfrac{4}{5} + x = \cfrac{3}{7} \\ \\ \\ x = \cfrac{3}{7} - \cfrac{4}{5}\\ \\ \\ x = \cfrac{3 \times 5}{7 \times 5} - \cfrac{4 \times 7}{5 \times 7} \\ \\ \\ x = \cfrac{15}{35} - \cfrac{28}{35} \\ \\ \\ x = \cfrac{-13}{35} \\ \\ \\ x = -\cfrac{13}{35}$

Answer : (d) -13/35