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xromtsov24
@xromtsov24
July 2022
2
10
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( 87 - х ) - 12 = 49 найдите сумму x
45- ( х + 13 ) = 19
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юрий140
87 - X = 49 + 12
87 - X = 61
X= 87 - 61
X= 26
1 votes
Thanks 1
xromtsov24
а можно еще 2 ?
sofa2610
1) 87-х-12=49
-х=49+12-87
-х=-26
х=26
2)45-х-13=19
-х=19+13-45
-х=-13
х=13
0 votes
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Answers & Comments
87 - X = 61
X= 87 - 61
X= 26
-х=49+12-87
-х=-26
х=26
2)45-х-13=19
-х=19+13-45
-х=-13
х=13