Question

Im working on algebra hw and i need help with this problem 8.1x - 4.5y = 5.4

Answer 1

8.1x - 4.5y = 5.4.....subtract 8.1x from both sides
-4.5y = -8.1x + 5.4...divide both sides by -4.5
y = (- 8.1/-4.5)x + 5.4 / -4.5...simplify
y = 1.8x - 1.2 <==

Answer 2

The solution for y is
`y =(8.1x-5.4)/(4.5)` or
`y =1.8x-1.2`

Explanation:

Consider the provided equation.

`8.1x - 4.5y = 5.4`

Solve the equation for y.

Subtract 8.1x to the both side.

`- 4.5y = 5.4-8.1x`

Divide both the sides by -4.5

`y =(5.4-8.1x)/(-4.5)`

`y =(8.1x-5.4)/(4.5)`

or
`y =1.8x-1.2`

Hence, the solution for y is
`y =(8.1x-5.4)/(4.5)` or
`y =1.8x-1.2`