Answer:
63
Step-by-step explanation:
9x7=(10x7)-1x(7)
=70-7
=63
Answer:
£23
Explanation:
6x10=60
2x1.5=3
3.14x2^2=12.566
60-3-12.566=44.433
44.43/10=4.43
5 bags
5x4.60=23
=£23
Answer:
33%
Step-by-step explanation:
First subtract the 7 from both sides and that would equal 2x+9=2x then subtract 2x and the answer is 9
Answer:

Step-by-step explanation:
So, we are given:

First, we should immediately rule out 0 as an answer. This is because the if
, the equation would be undefined.

Now, cross multiply.


Divide everything by x (and we can do this safely because we already know x cannot be equal to zero).


We didn't run into any possibilities for extraneous solutions.