Question

If the value of the variable X in the equation for x minus 3 by 5 equal to Y is 12 then the value of Y

Answer 1

Answer:

Substitue x = 12

X-3

------  = Y

5

12 - 3

-------- = Y

  5

9

----- = Y

5

∴ Y = 9/5

You can verify your answer by substituting y=9/5

X - 3

------- = Y

  5

X - 3         9

--------- = --------

   5            5

X - 3 =  9

          -------  ×  5

              5

X - 3 = 9

X = 9 + 3

X = 12