1) 5x+2x =62-50
5x+2x = 35
7x = 35
x= 35:7
x = 5
2)
7x-x=521:519+3 . 22-70
7x-x = 25+11
6x = 36
x = 36:6
x=6
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a) 5x + 2x = 62 - 50
x ( 5 + 2 ) = 36 - 1
x . 7 = 35
x = 35 : 7
x = 5
5x+2x=\(6^2\)-\(5^0\) x.(5+2)=36-1 7x =35 x =35:7 x =5
1/ 5x + 2x=62-50
5x + 2x=36 - 1
5x + 2x= 35
7x = 35
x = 35 : 7
x = 5
Vậy x = 5
1)5x+2x=62-50
7x=35
X=35:7
X=5
2)7x-x=521:519+3*22-70
6x=36
X=36:6
X=6
5x+2x=62-50
5x+2x=36-1
7x=35
x=35:7
x=5
7x-x=521:519+3.22-70
=> 6x = 5^2 + 12 -1
=> 6x = 36
=> x = 36/6 = 6
Kết quả 6
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