exam Maths Puzzle Numerical Ability

Solve each system by substitution. Determine whether each system is independent, inconsistent, or dependent

3x - 2y = 7
-3x + y = 5

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exam Other Question

I need help simplifying
the squae root of 28x^2y + the square root of 63x^2y^3. Thank you very much. The product of two consecutive positive integers is 142 more than the next integer.What is the largest of the three integers?