exam Maths Puzzle Numerical Ability

x + 2y = 0
4x -z = 4
5y + z = -1

solve each system using substitution

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exam Other Question

You roll a dice. What is the probability the sum of the first roll is 7 and the sum of the second roll is 10? GCF

x^2y, 3x^3y, and 6x^2