-5n-8(1+7n)=8
Let's simplify everything.
-5n-8-56n=8
Put the variables on one side and the numbers on the other.
-5n-56n=8+8
Combine like terms.
-61n=16
n=-16/61
Hope I helped! :)
Is the arrow the length of the rotation? 90 degrees? if so, the second picture is, with the star at the highest point of the other pictures.
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The slope is -3/1 so to find other points, go to (2,-1) and go down 3, over 1.
D. Since you bought 3 text books you will have to multiply and then add the rest of the numbers
After rotation the output for point C´ would be ( - 2 . -3 ). There is also a graph showing rotation in the attachment.