Tìm X thuộc N
(x – 34).15=0
18.(x – 16)=18
5.(x+35)=515
(x – 35) – 120=0
124+(118 – x)=217
156 – (x+61)=82
541+(218 – x)=735
96 – 3.(x+1)=42
70 – 5.(x – 3)=45
219 – 7.(1+x)=100
45+(3x+9)=18
100 – (2x+5)=15
(109 – 5x) – 39=20
2x+10 =
12x – 33 =
(6x – 39 ) : 3 = 13
(3x – 6).3 = 34
96 – 3. ( x + 1 ) = 42
(3x - ). = 2.
(2x - ).
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Sinh Học lớp 12
