Question

If the output number y is -52 (y=5x-2) what is the input number? SHOW WORK

Answer 1

-10

Explanation:

The 'y' variable is associated with outputs and the 'x' variable is associated with inputs.

`y = 5x-2\\\rule{150}{0.5}\\-52 = 5x - 2\\\\-52 + 2 =5x - 2 + 2\\\\-50 = 5x\\\\(-50=5x)/(5)\\\\\boxed{-10 = x}`

-10 (x) should be the input number.

Answer 2

x = -10

Explanation:

Equation:

-52 = 5x - 2
`\longmapsto` Add 2 to both sides

-50 = 5x
`\longmapsto` Divide both sides by 10

x = -10

-Chetan K