Solve 5x + 6y = 18 for y how do i sovle this?

5x + 6y = 18

6y = 18 - 5x

y= (18/6) - (5x/6)

y= 3 - (5x/6)

When x = 12,

y = 3 - [(5*12)/6]

y = - 7

Your Answer is good...

then substitute y = -5x/6 + 3 for y in the first equation so its
5x+6*-5x/6 + 3 = 18
5x+6*-5x/6 = 15
5x + 6 * -5x = 90
6 * -5x = 90 - 5x
6 = 90 + x
x = -84

here is the way you isolate Y 5x + 6y = 18 circulate the 5x to the different element via inverting 6y = 18 - 5x do the comparable with the 6 x y via deviding each little thing via 6 this could appear as if this 6y / 6 = (18 - 5x) /6 all of us comprehend that 6 X Y / 6 is the comparable as in simple terms Y so simplified... y = (18 - 5x) / 6 wish this facilitates.

5x + 6y = 18

Solve for y

Solution:

y = 1/6(18 - 5x)

y = 0166667 (18 - 5x)

5x + 6y = 18
6y = 18 - 5x
y = (18 - 5x) / 6

y = 18 - 5(12) / 6
y = (18 - 60) / 6
y = -42/6
y = -7

5x + 6y = 18
6y = -5x + 18
y = (-5x + 18)/6
y = -5x/6 + 18/6
y = -5/6(x) + 3

Find y if x = 12.
y = -5/6(12) + 3
y = -5(2) + 3
y = -10 + 3
y = -7

y=(18-5x)/6=3-(5x/6)

I'm confused right now too! lol =)