Question

Solve: 0.003x - 0.02 = 0.07

Answer 1

Consider the following expression:

`0.003x-0.02=0.07`

solving for 0.003x, this is equivalent to:

`0.003x=0.07+0.02`

this is equivalent to:

`0.003x=\text{0}.09`

solving for x, we obtain:

`x=(0.09)/(0.003)=30`

So that, we can conclude that the correct answer is:

`x=30`