exam Maths Puzzle Numerical Ability

Linear equations using substitution, Thank you !

x/3+y/5 =1
x+6y=12

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exam Other Question

How do you make a graph with eqation: y=-3/2x - 2 ? The width of a rectangle is 3/4 of its length. If the perimeter of the rectangle is 140 feet, what are the dimensions of the rectangle?

Thank you all for your time!