Ayundenme con estas ecuaciones:
3×-4=20
2×+17=37
5×-5=30
4×+2=50
× sobre 5-45=80
6×-4=50
3×-4=20
2×+17=37
5×-5=30
4×+2=50
× sobre 5-45=80
6×-4=50
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3x=20+4
3x=24
x=24/3
x=8
2x+17=37
2x=37-17
2x=20
x=20/2
x=10
5x-5=30
5x=30+5
5x=35
x=35/5
x=7
4x+2=50
4x=50-2
4x=48
x=48/4
x=12
x/5-45 =80
x =80*(5-45)
x= 400-3600
x=-3200
6x-4=50
6x=50+4
6x=54
x=54/6
x=9