Question

63 :(5X - 3X - 1)=21:3​

Answer 1

x = 5

Explanation:

Given that,

`63:(5x-3x-1)=21:3\\\\or\\\\(63)/((5x-3x-1))=(21)/(3)\\\\(63)/((2x-1))=7`

Cross multiplying both sides,

`63=7(2x-1)\\\\9=2x-1`

Taking like terms together,

`10=2x\\\\x=5`

So, the value of x is equal to 5.