SOLUTION: If x*y = xy + x + y, solve the equations a) x*3 = 19 b) (x*3)+(2*x)=40 c) x*x =48

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Question 1069673: If x*y = xy + x + y, solve the equations
a) x*3 = 19
b) (x*3)+(2*x)=40
c) x*x =48
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Follow the definition for the operation.

Question #(b) being done here only:
(x*3)+(2*x)=40
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%28x%29%283%29%2Bx%2B3%2B%282%29%28x%29%2B2%2Bx=40
3x%2Bx%2B3%2B2x%2Bx%2B2=40
7x%2B5=40
7x=35
highlight%28x=5%29