The area of a rectangle is x2 - 6x – 27 and the length is X - 9. What is the width?
2 answers:
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y = 4
first note that the right side simplifies to 12, equation can be written
= 12 ( multiply both sides by 0.8 )
2y + 1.6 = 9.6 ( subtract 1.6 from both sides )
2y = 8 ( divide both sides by 2 )
y = 4