Solve the system of equations using the substitution method. x=3+12y −2x−y=3

x = -33/25

y = -9/25

Step-by-step explanation:

We have the equations

x = 3 + 12y (i)

-2x-y = 3 (ii)

To use the substitution method. We produce equation (i) in equation (ii)

So, we have:

-2 (3 + 12y) -y = 3

Now we clear for y'

-6-24y-y = 3

-25y = 9

y = -9/25

Now we introduce the value of y into equation (i) and get the value of x

x = 3 + 12 (-9/25)

x = -33/25

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

answer: the answer is 30 miles per hour.

ft/s -> mphmph = ft/s 1.466667mph = 44 divided by 1.466667mph = 30.00000

- r3ktforgood ☕