Question 848678: ABCD is a rectangle.If AB=7x-6 and CD=5x=30,find the value for x
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! AB and CD are opposite sides. With any rectangle, opposite sides are congruent or equal in length.
So,
AB = CD
7x - 6 = 5x + 30 ... Note: I'm assuming you meant to say 5x + 30 instead of 5x = 30
Now we solve for x
7x - 6 = 5x + 30
7x = 5x + 30 + 6
7x - 5x = 30 + 6
2x = 36
x = 36/2
x = 18
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