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sashaaleksandrn
@sashaaleksandrn
June 2023
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Tetyana1807
1)6(3а-в)-2(а-3в)=18а-6в-2а+6в=16а
2)10-2(3х+5)=4(х-2)
10-6х-10=4х-8
-6х-4х=-8-10+10
-10х=-8
х=8/10=0,8
3)(2 1/3 - 3 3/8) * 4 4/5 + 2 4/9 =
=(7/3-27/8)*24/5+22/9=
=-25/24*24/5+22/9=
=-5+22/9=-23/9= - 2 5/9
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Answers & Comments
1)6(3а-в)-2(а-3в)=18а-6в-2а+6в=16а
2)10-2(3х+5)=4(х-2)
10-6х-10=4х-8
-6х-4х=-8-10+10
-10х=-8
х=8/10=0,8
3)(2 1/3 - 3 3/8) * 4 4/5 + 2 4/9 =
=(7/3-27/8)*24/5+22/9=
=-25/24*24/5+22/9=
=-5+22/9=-23/9= - 2 5/9