book Maths Puzzle Numerical Ability

Can i see your method of doing the systems of equations in three variables...

-11x+8y-9z=33
-x-3y+6z=47
-6x+2y-3z=29

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book Other Question

Draw a sketch of the following Parent Fuctions and then name the function

1. y=x^2
2. y= 1/x
3. y = 2^X . Carlos and Mike agree race.Each leaves his own house at the same time and ride to the other�s house. A map of the race is shown. Carlos stays on the highway and averages 21 mp