Question

If 20x + 10 (7 - x) = 100, what is x?​

Answer 1

Answer:

x is 30/10 . because simple sum

Answer 2

Answer:

20x + 10 (7 - x) = 100

20x + 70 - 10x = 100

10x = 100 - 70

10x = 30

::x = 30/10

:: x = 3

Hope it will help you