exam Maths Puzzle Numerical Ability

Solve the system by substitution. x + y = 12
y = 2x

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exam Other Question

Graph the inequality:
y<2x-1 Please help me to answer this question.

True or False. Explain your answer.
The inequality x/x-3 > 2 is equivalent to x > 2x - 6.

Thank you for your help.