3x+9-7x=x+10+X
-4x+9= 2x+10
-6x+9= 10
-6x=1
1
x--
X=--
6
...
Mathematics, 14.07.2020 20:01 ninaaforever
3x+9-7x=x+10+X
-4x+9= 2x+10
-6x+9= 10
-6x=1
1
x--
X=--
6
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