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liz200412345
@liz200412345
July 2022
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LordDeInfernus
По свойству пропорции множим крест накрест
1) 2(2x + 1) = 3
6x + 2 = 3
6x = 1
x = 1/6
2) 3(3x - 2) = 2
9x - 6 = 2
9x = 8
x = 8/9
3) 2(4x-1) = 5
8x - 2 = 5
8x = 7
x = 7/8
2 votes
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altynaizuhra
..........................
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Answers & Comments
1) 2(2x + 1) = 3
6x + 2 = 3
6x = 1
x = 1/6
2) 3(3x - 2) = 2
9x - 6 = 2
9x = 8
x = 8/9
3) 2(4x-1) = 5
8x - 2 = 5
8x = 7
x = 7/8