book Maths Puzzle Numerical Ability

L= 1/2W 62= 2L + 2W


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This question is actually about elimination because there werent any catorgories for elimination. My question is:
6r-3t=6
6r+8t=-16

My answer was (-15/2,2) but I don't think t
1) Determine the x and y intercepts of 3x-y=9.
Explain how you got it.

2)a) find the x and y intercepts for 3x=4y=12 and 2x=3y=9
b) use the intercepts to graph the system an