Answer:
-3x+30
Step-by-step explanation:

Expand 

Simplify 

No.5=1/3x=21
So x is twenty one21
Answers 3 and 4! since there is a negative power, that’s the only time the 0’s are added to the front :)
Please insert your equation number
Calculate and multiply to get
-4/(-6)+7 - 2x(-2)/-1x3+7
Next remove parentheses and calculate,
You'll get -4/-6+7 - 2x(-2)/4
Then calculate and reduce,
-4/1 - -2/2
Reduce and divide to get -4-(-1)
Remove parentheses, -4+1
And calculate to get your final answer
= -3