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bragina021
@bragina021
July 2022
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Решить 1)84,7:(х+2,7)=11 2)8,65+3,45):х=-5 3)у+1,6)*(-12)=76,8
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VasiaZozulia
1)84,7:(х+2,7)=11
11(x + 2.7) = 84.7
11x + 29.7 = 84.7
11x = 84.7 - 29.7
11x = 55
x = 55/11
x = 5
2)(8,65+3,45):х=-5
-5x = 12.1
x = -12.1/5
x = -2.42
3)(у+1,6)*(-12)=76,8
-12y + 19.2 = 76.8
-12y = 76.8 - 19.2
-12y = 57.6
y = -57.6/12
y = -4.8
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Answers & Comments
11(x + 2.7) = 84.7
11x + 29.7 = 84.7
11x = 84.7 - 29.7
11x = 55
x = 55/11
x = 5
2)(8,65+3,45):х=-5
-5x = 12.1
x = -12.1/5
x = -2.42
3)(у+1,6)*(-12)=76,8
-12y + 19.2 = 76.8
-12y = 76.8 - 19.2
-12y = 57.6
y = -57.6/12
y = -4.8