book Maths Puzzle Numerical Ability

can you please really help me with this question.. it will really help me alot..
solve by any method.
-2x+10=0
2x-2y=6

Read Solution (Total 0)

book Other Question

Find two factors of 28 with a sum of 11 problem given by teacher from a worksheet
3 circles on the same straight line, the 1st with a radius of 16 cm, the 2nd with a radius of 9cm, is there a way to find the radius of the 3rd circle which sits in between the other two?
thank you