Question

3x+4y-12=0
make y the subject of the equation ​

Answer 1

The answer:
Y = -3 + 3x/4

Answer 2

y = -¾x + 3

Explanation:

Given the equation in standard form, 3x + 4y - 12 = 0, we must isolate the y in order to make it the subject of the equation.

The first step is to add 12 to both sides of the equation:

3x + 4y - 12 + 12 = 0 + 12

3x + 4y = 12

Next, subtract 3x from both sides:

3x - 3x + 4y = - 3x + 12

4y = -3x + 12

Lastly, divide both sides by 4 to isolate y:

`(4y)/(4) = (-3x + 12)/(4)`

y = -¾x + 3