Step-by-step explanation:
the error:
it is stated that
subtract (5x)/(x+7) from both sides

multiply both sides by x + 7
7(x+7) = 49x
7x + 49 = 49x
subtract 7x from both sides to isolate x and its coefficient
49 = 42x
thus, this is only true when 49 = 42x. in order for these two equations to be equal, they must <em>always </em>be true, so this is wrong
the solution:
we want to express 7/x as (something) / (x+7). to do this, we can multiply 7/x by 1.
anything divided by itself = 1. thus, if we multiply both the numerator and the denominator by something that turns x into (x+7), we can do what we want to do.
(x+7)/x * x turns x into (x+7), so we multiply both the numerator and denominator by (x+7)/x to get

substitute this for 7/x in our original problem

Answer:
1170 people are not happy of the price of the parking.
Answer:
15/32
3/4 x 5/8 = 15/32 in fraction form.
Step-by-step explanation:
Answer:2
Step-by-step explanation:
Step-by-step explanation:
I hope I got it right.....
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)