Question

Solve 4x+y=24 and y=-4x+24 using substitution​

Answer 1

infinite solutions

Explanation:

substitute y in the first equation

4x+(-4x+24)=24

4x and -4x cancel out

24/24=1

or solve for x, you should also get 1

Answer 2

no solutions

Explanation:

`4x + y = 24 - - - (a) \\ y = - 4x + 24 - - - (b)`

substitute for y in (a) with (b):

`4x + ( - 4x + 24) = 24 \\ 0x = 0`