exam Maths Puzzle Numerical Ability

Solve the following system of equations. If the system cannot be solved, state that it cannot be solved and explain why.

5x-2y=(-24)
-4y= -48-10x

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exam Other Question

FIND THREE CONSECUTIVE ODD INTEGERS.

THREE TIMES THE SECOND MINUS THE THIRD IS ELEVEN MORE THAN THE FIRST? A piece of property valued $25000 six years ago is now valued at $18000. What was the annual rate of depreciation in the value of the property to the nearest percent?