Question

Solve the following system.

3x + 2y = 18
y= -2/3x + 12

Answer 1

@abdela25

Answer 2

Replace the y in the first equation with -2/3x + 12

Answer 3

solve for the variables?

Answer 4

Er. I think so. Because I'm guessing the second equation is the answer for y in the first equation.

Answer 5

But it says on the answer key that it's: (-3.6, 14.4)

Answer 6

Those are the equations of two lines. You job is to find where the lines cross by finding the x and y values that make both equations true.

Answer 7

in that case the first part would be x=6-2y/3

Answer 8

So do what I said. Replace the y in the first equation with -2/3 x + 12

Answer 9

also in the first part y would equal
y=9-3x/2

Answer 10

\[3x+2(\frac{-2}{3}x+12)=18\]

Answer 11

\[3x+\frac{-4}{3}x+24=18\]

Answer 12

Finish solving that equation.

Answer 13

the second part would be
y=12-2x/3

and x would equal
x=18-3y/2

basically what @Mertsj is saying hes making it easier