7(x-2)=4(x*1)-21

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Solution for 7(x-2)=4(x*1)-21 equation: 



7(x-2)=4(x*1)-21

We move all terms to the left:

7(x-2)-(4(x*1)-21)=0

We add all the numbers together, and all the variables

7(x-2)-(4(+x*1)-21)=0

We multiply parentheses

7x-(4(+x*1)-21)-14=0



We calculate terms in parentheses: -(4(+x*1)-21), so:

4(+x*1)-21

We multiply parentheses

4x-21

Back to the equation:

-(4x-21)



We get rid of parentheses

7x-4x+21-14=0

We add all the numbers together, and all the variables

3x+7=0

We move all terms containing x to the left, all other terms to the right

3x=-7

x=-7/3

x=-2+1/3

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