exam Maths Puzzle Numerical Ability

-5x(x + 2y - 7)

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exam Other Question

The difference between two numbers is 18. 5 times the larger number is 2 times the smaller number. Find the two numbers. Two angles are supplementary of each other. Twice one angle is equal to the other
angle minus the product of six and eight.

A. Set up a system of linear equations to repre