Resposta:
X+ 4=10 --> x=6
X+101=300 --> x= 199
X-279=237 --> x= 516
X+9=-1 --> x= -10
3x=12 --> x= 4
9x=18 --> x= 2
35x=-105 --> x= -3
7x-1=13 --> x= 2
6x-10=2x+14 --> 4x = 24 --> x= 6
6x=2x+28 --> 4x=28 --> x= 7
2x+6=x+18 --> x=12
5x-3=2x+9 --> 3x=12 --> x=4
3(x+2)=15 --> x+2=5 --> x=3
2(x-1)-7=16 --> 2x-1=23 --> 2x=24 --> x=12
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Resposta:
X+ 4=10 --> x=6
X+101=300 --> x= 199
X-279=237 --> x= 516
X+9=-1 --> x= -10
3x=12 --> x= 4
9x=18 --> x= 2
35x=-105 --> x= -3
7x-1=13 --> x= 2
6x-10=2x+14 --> 4x = 24 --> x= 6
6x=2x+28 --> 4x=28 --> x= 7
2x+6=x+18 --> x=12
5x-3=2x+9 --> 3x=12 --> x=4
3(x+2)=15 --> x+2=5 --> x=3
2(x-1)-7=16 --> 2x-1=23 --> 2x=24 --> x=12