ALGEBRA

Simplify 2x - 3y + 3x - 2y + 3

Simplify $$2mn\left(5mn^2\right)$$  

Simplify $$\frac{10a^3b^2c}{2abc}$$  

Simplify $$5x+3\left(2x+1\right)$$  

Simplify $$2p\left(p+1\right)-10p$$  

Solve $$4\left(2n+10\right)-14=8\left(2n-2\right)$$  

What number decreased by 15% of itself becomes 170?

The sum of twice a number and eight is 20. Find the number. 

There are two numbers whose sum is 84. One number is twice the other. What are the numbers?    

A price ticket to the funfair costs RM12. A family pass costs RM24 more than half of that. How much does a family pass cost?