Question

10x + 5y = 80
solve for y :*

Answer 1

Write the original equation - 10x + 5y = 80

Subtract 10x from each side - 10x + 5y - 10x = 80 - 10x

Simplify - 5y = 80 - 10x

Divide each side by 5 -
`(5y)/(5)` =
`(80 - 10x)/(5)`

Simplify - Y = 16 - 2x

Answer 2

`10x+5y=80 \\ \\ (10x+5y)-10x=(80)-10x \\ \\ 5y=-10x+80 \\ \\ (5y)/(5)= (-10x+80)/(5) \\ \\ y=-2x+16`