Question

Solve the equation for y.

8x – 9y = 11
A. y= -8/9x - 9/11
B. y= 9/8x + 11/8
C. y= -8x - 11
D. y= 8/9x - 11/9

Answer 1

We need to solve for y so start by subtracting 8x from both sides
\[\huge~\rm~8x -8x– 9y = 11-8x\]
What equation are u left with?

Answer 2

X=
Y=
if you sub the two numbers to were they both equal 11, you get the awnser.

Answer 3

D? v-v

Answer 4

what does that mean?

Answer 5

Incorrect

Answer 6

I'm incorrect? aw.

Answer 7

This is in standard form:
\(\large ax + by = c\)

And the slope-intercept form is \(\large y = mx + b\).

Thus, you need to have \(\large y\) on one side and \(\large ax\) and \(\large c\) on the other (note that \(\large ax\) sort of means \(mx\) in the slope-int form and \(\large c\) means \(\large b\) in slope-int form).

Answer 8

8x-8x cancels out
now you have
-9y=-8x+11
divide everything by -9
\[\huge~\rm~\bf-9y/-9=-8x/-9+11 /-9\]

Answer 9

O.k i'm lost.

Answer 10

20 and 0?

Answer 11

-9/-9=1 so just y
so now you have y=-8x/-9+11/-9

Answer 12

sorry can't help cause i don't know this.

Answer 13

sorry can't help cause i don't know this.

Answer 14

Similar to what @pooja195 is doing...
\(\large 8x - 9y = 11\)
\(\large 8x - 8x - 9y = 11 - 8x\)
\(-9y = 11 - 8x\)

divide both sides by \(-9\) to isolate \(y\).
\(y = -\frac{11}{9} + \frac{8}{9}x\)
we can now rearrange this for a better interpretation.
\(\large y = \frac{8}{9}x - \frac{11}{9}\)

Answer 15

Thank you peeps.. xDD

Answer 16

You're welcome :)