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(2/5)x-(2/7)+(9/7)x+(1/5)=1
We simplify the equation to the form, which is simple to understand
(2/5)x-(2/7)+(9/7)x+(1/5)=1
Simplifying:
( + 0.4)*x-(2/7)+(9/7)*x+(1/5)=1
Simplifying:
( + 0.4)*x-( + 0.285714285714)+(9/7)*x+(1/5)=1
Simplifying:
( + 0.4)*x-( + 0.285714285714)+(+1.28571428571)*x+(1/5)=1
Simplifying:
( + 0.4)*x-( + 0.285714285714)+(+1.28571428571)*x+( + 0.2)=1
Reorder the terms in parentheses
( + 0.4x)-( + 0.285714285714)+(+1.28571428571)*x+( + 0.2)=1
Remove unnecessary parentheses
+ 0.4x-( + 0.285714285714)+(+1.28571428571)*x+( + 0.2)=1
Remove unnecessary parentheses
+ 0.4x-0.285714285714+(+1.28571428571)*x+( + 0.2)=1
Reorder the terms in parentheses
+ 0.4x-0.285714285714+(+1.28571428571x)+( + 0.2)=1
Remove unnecessary parentheses
+ 0.4x-0.285714285714+1.28571428571x+( + 0.2+)=+1
Remove unnecessary parentheses
+ 0.4x-0.285714285714+1.28571428571x + 0.2=+1
We move all terms containing x to the left and all other terms to the right.
+ 0.4x+1.28571428571x=+1 + 0.285714285714-0.2
We simplify left and right side of the equation.
+1.68571428571x=+1.08571428571
We divide both sides of the equation by 1.68571428571 to get x.
x=0.64406779661
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