Question

Use elimination to solve the system
4x = 3(1 − y)
3y = 4(8 − x)

Answer 1

probably want to start with
\[4x=3-3y\]
\[3y=32-4x\]

Answer 2

then maybe
\[4x+3y=3\]
\[4x+3y=32\] and then stop because your lines are parallel

Answer 3

then times the whole bottom equation by -1? so u can elliminate?

Answer 4

before you do anything, look at see that the left hand side of both lines is identical

Answer 5

and since the right hand side is not (you have 3 and 38) this means that the lines are parallel, so they do not intersect. no point in going further

Answer 6

if you multiply the second one by -1 and then add both the x and the y terms will drop out, leaving you with 0 = -29 which means no solution

Answer 7

what if there isnt two numbers that are the same? like this one
4x + 5y = 3
16x − 15y = 5

Answer 8

\[4x+5y=3\]
\[16x-15y=5\] they are not parallel

Answer 9

for this one you can multiply the top one across by 3 and add, and the y will drop out but not the x