Hi gunner77,
(22)(a) (a-2b)-3c(a-2b)
=1(a-2b)-3c(a-2b)
= (a-2b)(1-3c)
22(c) 2x-3y=15 -------------- (1)
3x-7y
=27.5 -------------- (2)
Eqn (1) x 3
6x - 9y = 45 ----------- (3)
Eqn (2) x 2
6x - 14 y = 55 --------- (4)
Eqn (3) - Eqn (4)
5y = - 10
y = - 2
Subst y = -2 into eqn (1)
2x - 3(-2) =
15
2x +
6 = 15
2x
= 9
x =
4.5
Tin Tin is probably not free today. I will help you with the
answers today. Tomorrow, tin tin will continue to help
you lah.
Thank you for your kind attention.
Regards,
ahm97sic
hey ahm97sic THANKS ALOT MAN
it seems so easy now, i really did not tink of the 1 for part
A.
as for part C, i did change both equation into 6x
i still couldn't get the answer. guess it must be the long
working tat cause me to be careless.
anyway thanks ahm97sic! really thanks alot.
