Question

Solve the equation.

4/5 + x = 3/7

a. 13/15
b. - 1/2
c. 1 8/35
d. - 13/35​

Answer 1

-13/35

Explanation:

4/5 + x = 3/7

subtract both sides by 4/5

x =
`(3)/(7) - (4)/(5)`

find the common denominator of 5 and 7

x =
`(15)/(35) - (28)/(35)`

x = -13/35

Answer 2

-13/35

Explanation:

multiply each side of equation by LCD of 5 and 7 (which is 35) to eliminate fractions

you get, 28 + 35x = 15

35x = -13