exam Maths Puzzle Numerical Ability

2x+1 - 3x+4 = 5x-9
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3 6 9

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exam Other Question

Could someone PLEASE show me the graphs for these equations? Thank you!
(a) y = -3/2x + 1
(b) y = -2/3x + 1
(c) y = 2x - 1
(d) y = 1/2x - 1 (3x-1)+(3x+1)+4 first part underlined by 9, second by 3