exam Maths Puzzle Numerical Ability

Systems With Three Variables:
Excersise One (Substitution):
13=3x-y
4y-3x+2z=-3
z=2x-4y

Exercise Two (Substitution):
x+3y-z=-4
2x-y+2z=13
3x-2y-z=-9

Exercise Three (Su

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exam Other Question

Solve each absolute value equation:

4-3|x - 2|= -8 Average price of a movie ticket. the average price of a movie ticket, in dollars, can be estimated by the function P given by P(x)= 0.227x - 448.71, where x is the year. thus, P(20