8/15•(2 1/4х-7 1/2у)-7/30•(4 2/7х-8 4/7у) СРОЧНО!. Created by Anastasiya250204. matematika-ru

7у) СРОЧНО!...

July 2022 1 0 Report

8/15•(2 1/4х-7 1/2у)-7/30•(4 2/7х-8 4/7у)
СРОЧНО!

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piksaeva85znayka 8/15×(2 1/4х-7 1/2у)-7/30×(4 2/7х-8 4/7у)=

=8/15×2 1/4х-8/15×7 1/2у-7/30×4 2/7х+7/30×8 4/7у=

=2/5×3/1х-4/1×1/1у-1/1×1/1х+1/1×2/1у=6/5х-4/1у-1/1х+2/1у=

=1 1/5х-4у-1х+2у=1 1/5х-1х-4у+2у=1/5х-2у

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254u282 125u srochno

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254u282 125u srochno

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