Question

How do you solve `4x-1=4`?

Answer 1

x = `5/4`

Explanation:

Add 1 to both sides of the equation. This will 'isolate' x-term.

so 4x - 1 + 1 = 4 + 1

and 4x = 5

(divide both sides by 4 )

`(cancel(4) x)/cancel(4) = 5/4`

so x = `5/4`

Note: An equation is like a 'balance' about the '=' sign.

[So whatever 'operation' you carry out must be carried out on

both sides of the equation to 'maintain' the balance.]