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1.add 2x 2y,-4x 2y,6x 2y,-5x 2y 2.find the value of 't' if the value pf 3x2+5x-2t equals to 8 ... - did not match any video results.

Solution=3×2+5x-2t=8

=3×2+5x(-1)-2t=8

=6-5-2t=8

=1-2t=8

=-2t=8-1

=-2t=7

=t=7/2

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