exam Maths Puzzle Numerical Ability

Solve by elimination:

4x + 5y = -16
5x - 6y = -20

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exam Other Question

1.FIVE TIMES A NUMBER IS 4 MORE THAN THE NUMBER. FIND THE NUMBER.
2.THE DIFFERENCE BETWEEN TWO NUMBERS IS 10 AND THEIR SUM IS 24. FIND THE NUMBERS Solve the equation The Distributive Property (Fractions)

1/2 (4x-6)-x= -15