Trả lời
96-3.(x+1)=42
3.(x+1)=96-42
3.(x+1)=54
x+1 =54:3
x+1 =18
x =18-1
x =17
12x-33=32.33
12x-33=35
12x =243+33
12x =276
x =276:12
x =23.
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96-3.(x+1)=42
3.(x+1)=96-42
3.(x+1)=54
x+1=54:3
x+1=18
x =18-1
x =17
12x-33=32.33
12x-33=243
12x =243+33
12x =276
x =276:12
x=23
96-3.(x+1)=42 12x-33=32.33
3.(x+1)=96-42 12x-33=243
3.(x+1)=54 12x=243-33
x+1=54:3 12x=210
x+1=18 x= 210:12
x=18-1=17 x=17,5