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sysanna4
@sysanna4
August 2022
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1150(1,2) Пожалуйста
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jekadva
1)
0,4x-1,2-1,6=0,5x-2,5
0,4x-2,8=0,5x-2,5
0,4x-0,5x=-2,5+2,8
-0,1x=0,3
x=0,3:(-0,1)
x=3
2)
3x-7,5+2x=2,5x-7,5-10
5x-7,5=2,5x-17,5
5x-2,5x=-17,5+7,5
2,5x=10
x=10:2,5
x=4
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Answers & Comments
0,4x-1,2-1,6=0,5x-2,5
0,4x-2,8=0,5x-2,5
0,4x-0,5x=-2,5+2,8
-0,1x=0,3
x=0,3:(-0,1)
x=3
2)
3x-7,5+2x=2,5x-7,5-10
5x-7,5=2,5x-17,5
5x-2,5x=-17,5+7,5
2,5x=10
x=10:2,5
x=4