courtj17 courtj17

17-07-2016
Mathematics

contestada

Find the value of x which ABCD must be a parallellogram?

x =

Find the value of x which ABCD must be a parallellogram x class=

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dalendrk dalendrk

17-07-2016

7x + 7 = 18 - 4x |subtract 7 from both sides

7x = 11 - 4x |add 4x to both sides

11x = 11 |divide both sides by 11

x = 1

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17-07-2016

Hello,

Opposed sides are equal.

7x+7=18-4x
==>11x=11
==>x=1

Answer Link

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