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лерочек5
@лерочек5
September 2021
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решите уравнение. б и в
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tan4ik3107
Б)
1+ (х+1)/3=х- (3х+1)/8
3+х+1 / 3= 8х-3х-1 / 8
4+х / 3=5х-1 / 8
8(4+х)=3(5х-1)
32+8х=15х-3
32+3=15х-8х
7х=35
х=35:7
х=5
в)
1-у /7 +у= у/2 + 3
1-у+7у / 7= у+6/ 2
1+6у /7= у+6/ 2
2(1+6у)=7(у+6)
2+12у=7у+42
12у-7у=42-2
5у=40
у=8
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Answers & Comments
1+ (х+1)/3=х- (3х+1)/8
3+х+1 / 3= 8х-3х-1 / 8
4+х / 3=5х-1 / 8
8(4+х)=3(5х-1)
32+8х=15х-3
32+3=15х-8х
7х=35
х=35:7
х=5
в)
1-у /7 +у= у/2 + 3
1-у+7у / 7= у+6/ 2
1+6у /7= у+6/ 2
2(1+6у)=7(у+6)
2+12у=7у+42
12у-7у=42-2
5у=40
у=8