2(2x-4.2)=7x-8.4

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Solution for 2(2x-4.2)=7x-8.4 equation: 



2(2x-4.2)=7x-8.4

We move all terms to the left:

2(2x-4.2)-(7x-8.4)=0

We multiply parentheses

4x-(7x-8.4)-8.4=0

We get rid of parentheses

4x-7x+8.4-8.4=0

We add all the numbers together, and all the variables

-3x=0

x=0/-3

x=0

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