5x-2x+4=4x-3x+6
4x+x-5=7x-5x+7
3x+9+2x=x-2x-3
-6x+2x+9=-2x+4-x
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4x+x-5=7x-5x+7
3x+9+2x=x-2x-3
-6x+2x+9=-2x+4-x
Por favor ayuden GRACIAS
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3x+4=x+6
3x-x=6-4
2x=2
x=2÷2
x=1
b)4x+x-5=7x-5x+7
5x-5=2x+7
5x-2x=7+5
3x=12
x=12÷3
x=4
c)3x+9+2x=x-2x-3
5x+9=-x-3
5x+x=-3-9
6x=-12
x=-12÷6
x=-2
d)-6x+2x+9=-2x+4-x
-4x+9=-3x+4
-4x+3x=4-9
-x=-5 /×-1
x=5