If -5/7 = x/28, find the value of x.

Solution:

Given, -5/7 = x/28

We have to find the value of x.

On cross multiplication,

-5(28) = x(7)

7x = -140

x = -140/7

x = -20

Therefore, the value of x is -20.

✦ Try This: If 4/3 = x/9, find the value of x.

Given, 4/3 = x/9

We have to find the value of x.

On cross multiplication,

4(9) = x(3)

3x = 36

x = 36/3

x = 12

Therefore, the value of x is 12.

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 9

NCERT Exemplar Class 7 Maths Chapter 8 Problem 74

If -5/7 = x/28, find the value of x.

Summary:

If -5/7 = x/28, then the value of x is -20

☛ Related Questions:

• Give three rational numbers equivalent to -3/4
• Give three rational numbers equivalent to 7/11
• Write the next three rational numbers to complete the pattern: 4/-5, 8/-10, 12/-15, 16/-20, __, __, . . . .