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    Work: Find the solution of equation 100+150 = Y .
    Question type: Equation
    Solution:Original question:

100

+

150

=

Y

Left side of the equation =

250

    The equation is transformed into :

250

=

Y

    Transposition :

-

Y

=

-

250

    By shifting the terms and changing the symbols on toth sides of the equation, we obtain :

250

=

Y

    If the left side of the equation is equal to the right side, then the right side must also be equal to the left side, that is :

Y

=

250

    This is the solution of the equation.
    This is the solution of the equation.

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