Question

find y for the linear equations
2x-3y=6
and find y for
-10x=5y

Answer 1

duno

Answer 2

rearrange for y.

1) 2x-3y=6
2x -6 = 3y
2/3x-6/3 = y
y=2/3x -2

2) -10x = 5y
try this one yourself.

Answer 3

ok wannabeagirl then go away

Answer 4

\[gj\]

Answer 5

retriceole

Answer 6

@jayds i got for 1 x-1.3

Answer 7

i really don t under stand

Answer 8

find y means that you have to isolate y, do you see how I did it above?
we want y = ...............

Lets use an example say 5x + y = 9
I want to find "x" this time not y, so I just bring the y to the right hand side and bring the 9 to the left hand side.
5x - 9 = -y
y = -5x + 9
do you understand?

Answer 9

so if i put -1 in the place of x what will it be

Answer 10

sorry, I do not understand what you are trying to say.

Answer 11

so instead of y=2/3x -2 what will it equal if \[ y=2/3\times-1 -2\]

Answer 12

you know what im saying

Answer 13

ok, substitution of x=-1 inside the equation is what u mean.
then you just solve it.
y=2/3 x -1 -2
y= -2/3 -2
y=-3.667

Answer 14

okkkkkkkkkkkk now i understand thanks so much!

Answer 15

it's ok, medal thanks :P