Question

Please solve this math problem

Answer 1

Answer:

Let the numbers be x

a) 3/5 th of x means 3x/5

Given 3x/5 = 21

3x = 5*21

x = 5*21/3 = 35

b) 4x = 28

x = 28÷ 4 = 7

c) 3x + 5 = 7

3x = 7-5

3x = 2

x = 2/3

d) (x-6)*5 = 0

x-6 = 0*5 = 0

x = 0+6 = 6