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xromtsov24
@xromtsov24
August 2022
2
11
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( 87 - х ) - 12 = 49 найдите x
45- ( х + 13 ) = 19
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SpringSing
1)49+12= 61. 2) 87- 61= 26
1 votes
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xromtsov24
но мне нужно точнее
xromtsov24
все сумыы эти и действия
теоретик5
(87-х)-12=49
87-12-х=49
75-х=49
-х=49-75
-х=-26
х=26
45-(х+13)=19
45-х-13=19
32-х=19
-х=-13
х=13
1 votes
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Answers & Comments
87-12-х=49
75-х=49
-х=49-75
-х=-26
х=26
45-(х+13)=19
45-х-13=19
32-х=19
-х=-13
х=13