exam Maths Puzzle Numerical Ability

Factor completely. 5x^2 + xy + 5x + y

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exam Other Question
Solve each of the system by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent.
10x + 2y = 7
y = -5x + 3

Any help is appreciated. Thanks


2y-5x>6


(answers)
(-3,4)
(5,-5/3)
(3/4,5)
(2.6,5)