Question

Simplify -2[9 - (x + 7)].

Answer 1

2x-4

Answer 2

\[-2\left(-\left(x+7\right)+9\right)=-2\left(-x+2\right)\]

Answer 3

?

Answer 4

first solve the parenthesis() the slove the square bracket[]

Answer 5

oh

Answer 6

the negative isn't being distributed correctly on the second to the last line
-2[2-x]

Answer 7

while -2 x 2 = -4
a negative times a negative is positive
(-2)(-x)

Answer 8

-2[9 - (x + 7)]
-2[9-x-7]
-2[2-x]
-4+2x

Answer 9

much better ^

Answer 10

thanks @UsukiDoll