Question

[y]-2=1; [5у]-4=6; 4+[3у]=7.​

Answer 1

Ответ:

у-2=1 у=3

5у-4=6 у=2

4+3у=7 у=1

Answer 2

To solve each of these equations for the variable y, follow these steps:

1. [y] - 2 = 1

Step 1: Add 2 to both sides to isolate the variable term. [y] = 1 + 2 [y] = 3

Step 2: The square brackets around y may indicate absolute value. So, y could be either +3 or -3.

2. [5у] - 4 = 6

Step 1: Add 4 to both sides to isolate the absolute value expression. [5у] = 6 + 4 [5у] = 10

Step 2: The square brackets around 5у indicate absolute value. So, 5у could be either +10 or -10.

3. 4 + [3у] = 7

Step 1: Subtract 4 from both sides to isolate the absolute value expression. [3у] = 7 - 4 [3у] = 3

Step 2: The square brackets around 3у indicate absolute value. So, 3у could be either +3 or -3.

Therefore, the possible solutions for y in each equation are:

1. y = 3 or y = -3
2. y = 2 or y = -2
3. y = 1 or y = -1