Resposta:
vou responder as que eu sei
2) X-6=4
X=4+6
X=10
4) X+12x=117
13x=117
X=9
5) 2x+X=24
3x=24
X=8
6) 5x-20=40+2x
5x-2x=40+20
3x=60
X=20
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Resposta:
vou responder as que eu sei
2) X-6=4
X=4+6
X=10
4) X+12x=117
13x=117
X=9
5) 2x+X=24
3x=24
X=8
6) 5x-20=40+2x
5x-2x=40+20
3x=60
X=20