3x-9y=-12
6x+20y=-62

Question

3x-9y=-12
6x+20y=-62

anonymous · Answer

3x-9y=-12
6x+20y=-62
______________

now multiply the first equation by -2 (only the first equation
-6x and 6x cancel out so now you are left with +18y=24 
                                                                         +20y=-62 
                                                                      -------------
now simplify

anonymous · Answer

just think of it as an addition problem
like |dw:1437842739602:dw|

anonymous · Answer

do you get what I am saying ? @sherlocked1270

anonymous · Answer

well I know how to do a regular problem where the y values are the same but the y values are different this time

anonymous · Answer

@Nnesha

anonymous · Answer

that's why you multiply the first equation by -2 to make the x values the same and once you found the y values you can substitute in and you  both values