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    Work: Find the solution of equation 85%X-159 = 55%X+3 .
    Question type: Equation
    Solution:Original question:

85 100

X

−

159

=

55 100

X

+

3

    Transposition :

85 100

X

−

55 100

X

=

3

+

159

    Combine the items on the left of the equation:

3 10

X

=

3

+

159

    Combine the items on the right of the equation:

3 10

X

=

162

    The coefficient of the unknown number is reduced to 1 :

X

=

162

÷

3 10

=

162

×

10 3

=

54

×

10

    We obtained :

X

=

540

    This is the solution of the equation.

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