exam Maths Puzzle Numerical Ability

solve the system of equation using the addition (elimination method. 2x - 7y + 3
-4x + 14y = -9

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exam Other Question

Kelly has 24 dimes and quarters worth $3.60. How many quarters does she have? Hi can someone please help me. Thanks in advance.
This is solving linear inequalities.

5[3t-(t-4)]-11<= - 12(t-6)-(-t)