book Maths Puzzle Numerical Ability

How would you do the problem of 3x-4=x+10?

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My question says to solve the system of this inequalitie by graphing.
x+y>4
-3x+y<-1

I dont know how to solve this or graph it. could you help me?
thanks Use the distributive property to help simplify the expression.

(-2/3)SQRT of 18) + (4/5 SQRT of 18) - (5/6 SQRT of 18)