Question

1. 3х =81 2. 5х-2=625 3. 4х+1=16 4. 8х=-4

Answer 1

Ответ:

Пошаговое объяснение:

1. x=27

2. 5x=625+2

   5x=527

   x=125,4

3. 4x=16-1

   4x=15

   x=3,75

4 x= -0,5

Answer 2

Пошаговое объяснение:

1) 3х=81

х=81:3

х=27

2) 5х-2=625

5х=625+2

5х=627

х=627:5

х=125,4

3) 4х+1=16

4х=16-1

4х=15

х=15:4

х=3,75

4) 8х=-4

х=-4:8

х= - 1/2 (0,5)

Answer 3

To solve these equations for "x," follow these steps:

1. 3x = 81 To isolate x, divide both sides by 3: 3x / 3 = 81 / 3 x = 27

2. 5x - 2 = 625 Add 2 to both sides to isolate 5x: 5x - 2 + 2 = 625 + 2 5x = 627 Now, divide both sides by 5: 5x / 5 = 627 / 5 x = 627 / 5 x = 125.4

3. 4x + 1 = 16 Subtract 1 from both sides to isolate 4x: 4x + 1 - 1 = 16 - 1 4x = 15 Divide both sides by 4: 4x / 4 = 15 / 4 x = 15 / 4 x = 3.75

4. 8x = -4 Divide both sides by 8 to isolate x: 8x / 8 = -4 / 8 x = -0.5