exam Maths Puzzle Numerical Ability

6x+3y=5
y=-2x+1

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exam Other Question

The sum of 2 consecutive integers is 250. Identify BOTH of the numbers. The formula must construct an algebraic equation with a variable. Solve the system using an augmented matrix. Show your work.

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