(2x+1)(x-3)-2x(x+7)=100

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Solution for (2x+1)(x-3)-2x(x+7)=100 equation: 



(2x+1)(x-3)-2x(x+7)=100

We move all terms to the left:

(2x+1)(x-3)-2x(x+7)-(100)=0

We multiply parentheses

-2x^2+(2x+1)(x-3)-14x-100=0

We multiply parentheses ..

-2x^2+(+2x^2-6x+x-3)-14x-100=0

We get rid of parentheses

-2x^2+2x^2-6x+x-14x-3-100=0

We add all the numbers together, and all the variables

-19x-103=0

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

-19x=103

x=103/-19

x=-5+8/19

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