Substitution involves replacing part of one equation with the other equation. In this case, the second equation is already solved for y. All we have to do is replace y in the first equation with 12x+3.

8x - (1/3)(12x+3) = 0

Distribute the -1/3

8x - 4x - 1 = 0

4x - 1 = 0

4x = 1

x = 1/4

Now plug 1/4 in for x to solve for y.

12(1/4) + 3 = y

y = 6

Answer: (1/4, 6)

6 0

3 years ago

Download movies off the Internet you must pay $1.99 per movie plus the one time fee of $5.50 I am expression to show the total c

VladimirAG [237]

So the equation for the total price is $5.50 + $1.99X

5 0

3 years ago

Read 2 more answers

Whats x.3=-30?<br> will give you the brainlest whoever gets it first!

xeze [42]

Answer:

x=-100