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Overview: 1 questions will be solved this time.Among them
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation x/(4000+0.12x) = 2 .
Question type: Equation
Solution:Original question:
x
÷
(
4000
+
3
25
x
)
=
2
Multiply both sides of the equation by:
(
4000
+
3
25
x
)
x
=
2
(
4000
+
3
25
x
)
Remove a bracket on the right of the equation::
x
=
2
×
4000
+
2
×
3
25
x
The equation is reduced to :
x
=
8000
+
6
25
x
Transposition :
x
−
6
25
x
=
8000
Combine the items on the left of the equation:
19
25
x
=
8000
The coefficient of the unknown number is reduced to 1 :
x
=
8000
÷
19
25
=
8000
×
25
19
We obtained :
x
=
200000
19
This is the solution of the equation.
Convert the result to decimal form :
x
=
10526.315789
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