exam
Maths Puzzle
Numerical Ability
x+3y=9
-2x-6y=-18
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I want to Thank you for your help. May I please have you show me how to do this problem - I am so confused and have tried to figure this out. Thank you again! What am I doing wrong
[(5+4)x3] x 2 = 9 x(3x2)
is this associative law of multiplication?
it looks like we are doing (a x b) x c = a x (b x c)