exam Maths Puzzle Numerical Ability

solve the system of equations. let z be parameter
5x + 3y + 4z = 19
3x - y + z = -4

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exam Other Question

Write an English version of the following equations. X+2=5

Write an algebraic equation for English Statement �Subtract 5 from the sum of
X and 7 times 3 and the result is 20 choosing from {16,17,23,24,39}, show how you can make a sum of exactly 100