Question

a number is 3 less than three times another number and their sum is 19 then find the numbers​

Answer 1

Step-by-step explanation:

let "X" represent one of the numbers, and let "Y" represent the other number. From the problem statement, we can form two equations.

X = 3Y - 3 (1)

and

X + Y + 6 = 19 (2)

From equation (1), we can substitute "3Y-3" for "X" in equation (2); and we get

3Y - 3 + Y + 6 = 19

Simplifying the left side of the equation, we see that

4Y + 3 = 19

Subtracting "3" from both sides of the equation

4Y = 16

And we solve for "Y" by dividing both sides of the equation by "4"

Y = 4

Substituting "4" for "Y" in equation (1), we get

X = 3(4) - 3

or

X = 12 - 3 = 9

So, the numbers that you are looking for are 4 and 9.