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Please help me with my Algebra question. The perimeter of a rectangle is 54cm.One side is X cm long and the other side is 6 cm longer. Form an equation involving X
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Please help me with my Algebra question.

The perimeter of a rectangle is 54cm.One side is X cm long and the other side is 6 cm longer.
Form an equation involving X

User Andrew Shatnyy
by
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1 Answer

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54 = x + (x+6) + x + (x+6)
54 = 4x +12
42 = 4x
10.5 = x

The two shorter sides (x) are 10.5 cm, the two longer sides are (10.5+6, that is 6 cm longer) 16.5 cm. 10.5 + 10.5 + 16.5 + 16.5 = 54 cm.
User James Bubb
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6.0k points
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