exam Maths Puzzle Numerical Ability

2x=-4y -4
3x + 5y=-3

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exam Other Question

please show me step by step how to graph 2x+y>-3. Assistance with a formula to find the average of 35%, 20%, 15%, 25%, and 5%.
I am a transitional student, and need lots of help in this area. I thank you in advance for your assistance.

Ms. Daphne Roach