(x+6)(2x+7)=(x+4)(2x+9)

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Solution for (x+6)(2x+7)=(x+4)(2x+9) equation:



(x+6)(2x+7)=(x+4)(2x+9)
We move all terms to the left:
(x+6)(2x+7)-((x+4)(2x+9))=0
We multiply parentheses ..
(+2x^2+7x+12x+42)-((x+4)(2x+9))=0
We calculate terms in parentheses: -((x+4)(2x+9)), so:
(x+4)(2x+9)
We multiply parentheses ..
(+2x^2+9x+8x+36)
We get rid of parentheses
2x^2+9x+8x+36
We add all the numbers together, and all the variables
2x^2+17x+36
Back to the equation:
-(2x^2+17x+36)
We get rid of parentheses
2x^2-2x^2+7x+12x-17x+42-36=0
We add all the numbers together, and all the variables
2x+6=0
We move all terms containing x to the left, all other terms to the right
2x=-6
x=-6/2
x=-3

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