Set up an equation and solve it to find the unknown number:
Alex thinks of a number. If he adds 19 to it and divides the sum by 5, he will get 8.

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Solution

Let the number be n.
According to the question, $\frac{n + 19}{5} = 8$
$\Rightarrow n + 19 = 8 \times 5 \Rightarrow n + 19 = 40$
$\Rightarrow n = 40 - 19 \Rightarrow n = 21$

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Set up the equation and solve it to find the unknown number in the following case:
Ibenhal thinks of a number. If she adds $19$ to it divides the sum by $5$ , she will get $8$ .

Set up equations and solve them to find the unknown numbers in the following cases:

(a) Add 4 to eight times a number; you get 60.

(b) One-fifth of a number minus 4 gives 3.

(d) When I subtracted 11 from twice a number, the result was 15.

(e) Munna subtracts thrice the number of notebooks he has from 50, he finds the result to be 8.

(f) Ibenhal thinks of a number. If she adds 19 to it and divides the sum by 5, she will get 8.

(g) Anwar thinks of a number. If he takes away 7 from of the number, the result is 23.

Q. Set up equations and solve them to find the unknown numbers in the following cases :
(a) Add 4 to eight times a number ; you get 60 .
(b) One - fifth of a number minus 4 gives 3 .
(c) If I take three -fourths of a number and add 3 to it . I get 21 .
(d) When I substracted 11 from twice a number , the result was 15 .
(e) Munna substracts thrice the number of notebooks he has from 50 , he finds the result to be 8 .
(f) Ibenhal thinks of a number . If she adds 19 to it and divides the sum by 5 , she will get 8 .

Q. Ibenhal thinks of a number. If she adds 19 to it and divides the sum by 5, she will get 8.

Q. Amina thinks of a number. If she adds 19 to it and divide the sum by 9 she will get 8. Find the number

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Set up an equation and solve it to find the unknown number: Alex thinks of a number. If he adds 19 to it and divides the sum by 5, he will get 8.

Let the number be n. According to the question, n+195=8 ⇒n+19=8×5 ⇒n+19=40 ⇒n=40−19⇒n=21

Set up an equation and solve it to find the unknown number:
Alex thinks of a number. If he adds 19 to it and divides the sum by 5, he will get 8.

Let the number be n.
According to the question, $\frac{n + 19}{5} = 8$
$\Rightarrow n + 19 = 8 \times 5 \Rightarrow n + 19 = 40$
$\Rightarrow n = 40 - 19 \Rightarrow n = 21$