Question

twice a number increased by 8 gives 30. find the number​

Answer 1

Not every problem can be directly translated like this one, but I will line everything up to see how it goes.

Let 'x' be the number for which we are looking.

(Twice a number) (decreased by) (8) (is equal to) (the number) (increased by) (10)

2x - 8 = x + 10.

So, we have:

2x - 8 = x +10

--> x = 18, by subtracting 'x' from both sides, and adding 8 to both sides.