Preciso do resultado das equações e delas feitas (por favor) :
A) 2x-25=30+7x
B) 4x-100=20-2x
C) 6x-12=24+2x
D) 4x-60=x-90
A) 2x-25=30+7x
B) 4x-100=20-2x
C) 6x-12=24+2x
D) 4x-60=x-90
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2x-7x=30+25
-5x=55
x=55/-5
x= -11
B) 4x-100=20-2x
4x+2x=20+100
6x=120
x=120/6
x=20
C) 6x-12=24+2x
6x-2x=24+12
4x=36
x=36/4
x=9
D) 4x-60=x-90
4x-x= -90+60
3x = -30
x = -30/3
x = -10