Question

please solve fast Tomorrow is my test​

Answer 1

Answer:

x = 510

Step-by-step explanation:

3 × 1/x × 5 × 1/4 = 17 × 1/2

3/x × 5/4 = 17/2

15/4x = 17/2

1/4x = 17/2 × 15

1/4x = 255/2

x = 255/2 ÷ 1/4

x = 255/2 × 4/1

x = 1020/2

x = 510

Answer 2

Step-by-step explanation:

3x + 1/x × 21/4 = 35/2

21(3x + 1) / 4x = 35/2

63x + 21 / 4x = 35/2

63x + 21 = 35/2× 4x

63x + 21 = 35 × 2x

63x + 21 = 70x

70x = 63x + 21

70x - 63x = 21

7x = 21

x = 21/7

x = 3

I hope it helps you