Question

set up the equation and solve it to find the unknown number .

a. One - fifth of a number plus 4 gives 19.

b. If Munna of takes away 1/7 of the number from number, the result is 84.

c. If Vidhya adds 15 to a number and multiples the results by A, the answer is 418.
​

Answer 1

Answer:

question 1 ) $\frac{1}{5} x + 4 = 19 \\ \frac{1}{5} x = 19 - 5 = 15 \\ x = 15 \times 5 = 75$

Answer 2

Answer:

x/5+4=19

so x/5=19-4

=15

x/5=15

x=15×5

75