Question

If -2x+xy=30 and y=8,then what is the value of x?

Answer 1

Ok so plug 8 in for y so the equation equals -2x+8x=30 then combine like terms so it equals 6x=30 then divide 30 by 6 to get x=5

Answer 2

-2x + xy = 30.....when y = 8

-2x + 8x = 30
6x = 30
x = 30/6
x = 5 <==