Question

8x9y=24.5
7y-2x=-8.5 solve by the elimination method

Answer 1

I assume the first equation is missing an addition or subtraction symbol.

Answer 2

ya its suppose to be 8x-9y=24 sorry

Answer 3

8x-9y=24.5
-8x+28y=-34 multiply each term by 4 and add
19x=-9.5
x=-1/2
is it -24 or -24.5?

Answer 4

y = 10/37
x = 3.3

Answer 5

wait ..this is assuming 24

Answer 6

just 24.5

Answer 7

yes

Answer 8

it says that it is 8x-9y=24.5
7y-2x=-8.5

Answer 9

and it says use elimination method

Answer 10

y = -9.5/37
x = 3.35

Answer 11

how did you get that answer i am trying to learn thats why I am asking

Answer 12

multiply the 2nd eq(eq2) by 4 you get a -8x term in it on adding eq1 and eq2 that term gets cancelled leaving only 37y = 24.5 -4*8.5...this gives you y.Then take the value of y and put it in any eq this will give an eq purely in x.

p.s.Sorry for not posting an explanation with my earlier answer...hope this helped

Answer 13

HOW WOULD I WRITE THIS AS A SOLUTION