1)Resolva as equações a seguir
A)5×-3=2×+9
B)5×/3=20/4
C)2 (×-4)=×-2
D )-3 (×-5)=-(×+10)
E )2×-(3×+1)=5×+2
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A)5x-3=2x+9
5x-3=2x
2x+9=11x
B)5x/3=20/4
5x/3=1,6x
20/4=5
C)2 (x-4)=x-2
2 ×(x-4)=2×(3)=6
x-2=x
D)-3 (x-5)=-(x+10)
-3×(x-5)=-3×(4)=12
-(x+10)=-10
E)2x-(3x+1)=5x+2
2x-(3x+1)=2x-4x=2x
5x+2=7x
5x-3=2x
2x+9=11x
B)5x/3=20/4
5x/3=1,6x
20/4=5
C)2 (x-4)=x-2
2 ×(x-4)=2×(3)=6
x-2=x
D)-3 (x-5)=-(x+10)
-3×(x-5)=-3×(4)=12
-(x+10)=-10
E)2x-(3x+1)=5x+2
2x-(3x+1)=2x-4x=2x
5x+2=7x
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