Laive:

Okay o! I dey learn o... However, it's not as if I can't use the formula. But some examinars are always specific. The instruction might be to solve without using the formula.

I ADVICE YOU TO SOLVE A LOTS OF PROBLEMS USING FACTORIZATION METHOD, YOU WILL GET USED TO IT,. IS IT NOT BY FINDING TWO NOS THAT IF YOU MULTIPLY THEM WILL GIVE THE "C" AND IF YOU ADD THEM WILL GIVE "B"? ( IF "A" IS 1)

chiefolododo:
I ADVICE YOU TO SOLVE A LOTS OF PROBLEMS USING FACTORIZATION METHOD, YOU WILL GET USED TO IT,. IS IT NOT BY FINDING TWO NOS THAT IF YOU MULTIPLY THEM WILL GIVE THE "C" AND IF YOU ADD THEM WILL GIVE "B"? ( IF "A" IS 1)

Thanks, bro! That say it all, constant practice... Thanks.

jessetom:


Hmm. But you can program this. It's quite simple na. I see you are programmer. Use coding to illuminate the way

Yeah, I will try. Thanks...

Download this app to help u solve any equation including this one. You can thank me later

http://www.accesslodge.com/2016/08/tweakware-version-33.html?m=1

*****modified*****
since you said it's correct lemme show ya'll how


12m + 12n = -7. (×1)
4m - 3n = 7. (×3)
__________________________
12m + 12n = -7
-
12m + 9n = 21
__________________________
12n + 9n = -7-21
__________________________
21n = -28

@bolded: 12n - 9n should be 3n and not -21n or is there something am missing