Question

the value of x in this expression 7(x-1) =21​

Answer 1

Solution

$\implies{\rm}$7(x-1) = 21

$\implies{\rm}$7 x-7=21

$\implies{\rm}$7x = 21 + 7

$\implies{\rm}$7x = 28

$\implies{\rm}x = \frac{28}{7}$

Hope it helps you...

Answer 2

Answer:

x=4

Step-by-step explanation:

7(x-1)=21

7x-7=21

7x=21+7

x=28/7

x=4