assistance please, cant seem to get this right

Question

assistance please,  cant seem to get this right

pphalke · Answer

attachment

pphalke · Answer

@jhonyy9 @Scooby6363 @Mehek14 @563blackghost

immanuelv · Answer

what seems to be the problem?

scooby6363 · Answer

Solve both equations into proper slope intercept form and graph them using either an online program or manual methods.

ijlal · Answer

At the point which these 2 lines intersect is the solution of the equation  that is (8,4)

jhonyy9 · Answer

x-y=4
x+y=12 

first of all you need to separate the y on one side - try it and looke what will get in case of every two equations

pphalke · Answer

how do i do that @jhonyy9

jhonyy9 · Answer

y=x-4
y=-x+12

pphalke · Answer

i got that down but now the problem is graphing those on the line

jhonyy9 · Answer

like a first case give to x the value of zero so will get two separatly - different value for y - from this result that these two lines intersect the axe y on these two points 
this is clearly till this point ?

pphalke · Answer

yes i get it buti can put these into desmos and get the same lines