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ayoismeisalex
03.11.2020 •
Mathematics
Someone help plz
5(x-6)+8-2x=x+2(x-11)
what is x
Solved
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Ответ:
Explanation//
We move all terms to the left:
5(x-6)+8-2x-(x+2(x-11))=0
We add all the numbers together, and all the variables
-2x+5(x-6)-(x+2(x-11))+8=0
We multiply parentheses
-2x+5x-(x+2(x-11))-30+8=0
We calculate terms in parentheses: -(x+2(x-11)), so:
x+2(x-11)
We multiply parentheses
x+2x-22
We add all the numbers together, and all the variables
3x-22
Back to the equation:
-(3x-22)
We add all the numbers together, and all the variables
3x-(3x-22)-22=0
We get rid of parentheses
3x-3x+22-22=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0
Ответ:
-1/12
Step-by-step explanation:
-7÷12÷1÷7
: