book Maths Puzzle Numerical Ability

how do i sole this equations y-24=negative7 and negative100=12t-4

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How do I make a graph to show it with four different quadrants. I have to be able to graph inequalities for example 4x+y>4. Can you please help me? Then I need to know how to graph please soove this one aw^2-8b+2bw^2-4a