if f(x) varies directly with x and f(x) = 32 when x = –8, then what is f(x) when x = 4?

–16

–12

–8

–1

-16

Step-by-step explanation:

The equation 8x-2-5x+7=x has one solution.we start by combining like terms: 8x-5x-2+7=x3x-2+7=x3x+5=xcancel the variable to the right of the equals sign by subtracting: 3x+5-x=x-x2x+5=0subtract 5 from both sides: 2x+5-5=0-52x=-5divide both sides by 2: 2x/2 = -5/2x = -2.5