book Maths Puzzle Numerical Ability

-3(b-8)-5=9(b+2)+1

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I need to know how to graph
3x-2y=6
x+y=2

and i also need to know how many solutions it has.
can you help me please? thanks a lot!
A clown weighs 60lbs. more than a trapeze artist. The trapeze artist weighs two thirds as much as the clown. How much does each weigh?

you have to make an eqation using this data.