Explicación paso a paso:
1) 2(1+2x)=10
1+2x=10÷2
2x=5-1
x=4÷2
x=2
2(1+2.2)=10
2.5=10
10=10
2) 2(3x-2)=2
3x-2=2÷2
3x=1+2
x=3÷3
x=1
2(3.1-2)
2.1=2
2=2
3) -2(3x-2)=-2
3x-2=-2÷(-2)
x=-3÷3
-2(3.1-2)=-2
-2.1=-2
-2=-2
Hay esta :D
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Explicación paso a paso:
1) 2(1+2x)=10
1+2x=10÷2
2x=5-1
x=4÷2
x=2
2(1+2.2)=10
2.5=10
10=10
2) 2(3x-2)=2
3x-2=2÷2
3x=1+2
x=3÷3
x=1
2(3.1-2)
2.1=2
2=2
3) -2(3x-2)=-2
3x-2=-2÷(-2)
3x=1+2
x=-3÷3
x=1
-2(3.1-2)=-2
-2.1=-2
-2=-2
Hay esta :D