Question

Некоторое число увеличили в 7 раз и полученное число уменьшили на 54. В результате получили число 100. Найдите неизвестное число. ПОМОГИТЕ, ОЧЕНЬ НУЖНО!!!!

Answer 1

Х*7-54=100
х*7=100+54=154
х=154:7=22
22*7-54=100

Answer 2

Problem Analysis

To solve this problem, we need to find the unknown number that was multiplied by 7 and then decreased by 54, resulting in the number 100.

Solution

Let's assume the unknown number is represented by x.

According to the problem statement, the unknown number was multiplied by 7, resulting in 7x. Then, this value was decreased by 54, resulting in 7x - 54. Finally, this value is equal to 100.

We can write this as an equation: 7x - 54 = 100

To find the value of x, we need to isolate it on one side of the equation. Let's solve the equation step by step:

1. Add 54 to both sides of the equation: 7x - 54 + 54 = 100 + 54 Simplifying, we get: 7x = 154

2. Divide both sides of the equation by 7 to solve for x: (7x)/7 = 154/7 Simplifying, we get: x = 22

Therefore, the unknown number is 22.

Answer

The unknown number is 22.