Given that R = 8 x + 4 y Find y when x = 8 and R = 30 Give your answer as an improper fraction in its simplest form.
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Sorry for the drawing but what you do is add the boxes dont multiply so it will be t plus 5 plus 5 equal your answer
or 3 plus 3 plus 3 plus 3 plus 3 equals your answer
or 3 plus 3 plus 3 plus 3 plus 3 equals your answer