The sum of three numbers is 74. The first number is three less than half the second number. if the third number is four times the second number what is the value of the first number?

x=59/6

Step-by-step explanation:

Let's just say x+y+z=74

x=y-3

z=4y

So if we wanna convert everything into one variable, we get (y-3)+y+4y=74

Simplify and you get 6y=77

Now solve for y, and - 3 to get x

answer: idk wbu

step-by-step explanation: umm..

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15