book Maths Puzzle Numerical Ability

Sorry if the subject is wrong!

My question is:

3x-y= -3/2
4x+y=5

My work:

4x+y=5
-4x -4x

From there I get really confused! Thanks for the help!

Read Solution (Total 0)

book Other Question

Simplify the expression

(-3a^-3 b^7 / 2a^4 b^2)^3
Tricia is 14 years older than Michella. In four years, Tricia will be twice as old as Michella. How old are they now?