8x-9y=19
4x+y=-7
Multiply all terms of the 2nd by (9)===> 36x + 9y= 63
add (36x 9y= 63) to the 1st ===> 44x+0y = -44 ===> x=-1
replace x by this value in any of the equation & you'll get y=-3
Well, what are the pictures??
Answer:
option C
Step-by-step explanation:
It is D i think.............
.
I think there was 17 boys at the beginning of the concert. But i don't know how to put it in terms of P
