exam Maths Puzzle Numerical Ability

Please help me graph these equationss 3x-y=9 3x+2y=12
y=2/3x+4 y=-3/2x-6 Thank You!!!!

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break down and solve:

5x > 8 x 3/2 Hi,
I need help with this problem: {{{3x^3-4x=1}}}. I'm unsure how to factor it because of the cube. I moved the one to the other side and tried to factor it, but found i couldnt