Question

1. State the expression by which you would multiply each side of the equation in order to solve the equation. What value(s) of x cannot be a solution? x/x+4 + 1/2 =1

Answer 1

`x = 4`

`2x + 2(x + 4) * (1)/(2) = 2(x + 4) \\ 2x + x + 4 = 2(x + 4) \\ 3x + 4 = 2(x + 4) \\ 3x + 4 = 2x + 8 \\ 3x + 4 - 2x = 8 \\ x + 4 = 8 \\ x = 8 - 4 \\ x = 4`