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27 - x = 18 - 26
27 - x = -8
x = 27 - (-8)
x = 35
Vậy x = 35
Nhớ k cho mình nhé!
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x + x + x + 15 = 141
x × 3 = 141- 15
x × 3 = 126
x = 126 : 3
x = 42
x+x+x+15=141
x x3+15 =141
x x3 =141-15
x x3 =126
x =126:3
x =42
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x-23=78 67-x=45 x+345=678
x =78+23 x =67-45 x =678-345
x =101 x =22 x =333
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3,12:0,25+12,48x3-3,12x6
=3,12:1/4+3,12x4x3-3,12x6
=3,12x4+3,12x12-3,12x6
=3,12x(4+12-6)
=3,12x10
=31,2
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46<x-45<49
ta có 46<47;48<49
TH1:x-45=47
=>x=47+45
=>x=92
TH2:x-45=48
=>x=48+45
=>x=93
vậy x=92 hoặc x=93 thì 46<x-45<49
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200000000000000000000000000000000000000000000000000000000000000000000000000
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X=6
K NHA