exam Maths Puzzle Numerical Ability

(graphing linear equations)
Graph each wquation by using the x-and y-intercepts.

3x-y=3

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exam Other Question

Please help! I need to solve for x, y, and z. I don't understand how to solve for three variables.

Solve for x, y, z
X + 10Y + Z = 52
5X + Y + 4Z = 15
X + 2y - 3Z = 12 Solve the problem:

Adult tickets for a play cost $11 and child tickets cost $10. If there were 23 people at a performance and the theater collected $246 from ticket sales, how many children attended the play?