Question

Draw the tree diagram for the given expressions
(i) -3xy + 10 (ii) x
2 + y2

Answer 1

Question;

-3xy+10= 180 , when y = 5 ;

Answer;

y = 5

-3xy+10 = 180

-3x+5+10 = 180

-3x+15 = 180

-3x = 180-15 = 165

-3x = 165

x = -165/3

x = -55

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