book Maths Puzzle Numerical Ability

wat is the slope of a binomils 3x+2x-5

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book Other Question

5(y-3x)=8-2x


get y by itself
Phil and Phyllis are siblings. Phyllis has twice as many brothers as she has sisters. Phil has the same number of brothers as sisters. How many girls and how many boys are in the family?
I dont even know where to start with this one.