exam Maths Puzzle Numerical Ability

Please help me solve the problem below by addition, substituting and graphing...

4x - 6y = 12
2x + 2y = 6

Thank you for your help

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exam Other Question

I need help on this homework problem. Thank you for any help you can provide.

a1=1 r=-1 find s20

I keep getting 1 as the answer but the answer is 0. what am I missing? what happens to the graph of a function as the value of the independent variable approaches its vertical asymptote.