462,951 views
18 votes
18 votes
X – 10x = 100

Use a trial and improvement method to find this solution.
Give your answer correct to 1 decimal place.
You must show all your working.
On the same line as your final answer you must write "to 1 decimal place".

User Isaac Overacker
by
2.8k points

1 Answer

21 votes
21 votes

Answer:

-11.01 or -11

Explanation:

x-10x=100

1x-10x=100

-9x = 100

-9x/-9 =100/-9

x = -11.01

No calculator used

User Nykakin
by
3.1k points