2.1x=0.3(x-5)+0.2

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Solution for 2.1x=0.3(x-5)+0.2 equation:



2.1x=0.3(x-5)+0.2
We move all terms to the left:
2.1x-(0.3(x-5)+0.2)=0
We calculate terms in parentheses: -(0.3(x-5)+0.2), so:
0.3(x-5)+0.2
We multiply parentheses
0.3x-1.5+0.2
We add all the numbers together, and all the variables
0.3x-1.3
Back to the equation:
-(0.3x-1.3)
We get rid of parentheses
2.1x-0.3x+1.3=0
We add all the numbers together, and all the variables
1.8x+1.3=0
We move all terms containing x to the left, all other terms to the right
1.8x=-1.3
x=-1.3/1.8
x=-1/1.3846153846154

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