Answer:
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Step-by-step explanation:
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x = 147/5 and y = 78
First solve by substitution and put 78 into y in -5x + 2y = 9 so you get 147/5
then plug 147/5 into x and find y
I think you would just add 2/3 and 1/3 to get 1 full can of paint. If not sorry.