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    Work: Find the solution of equation 8y+y = 3.6 .
    Question type: Equation
    Solution:Original question:

8

y

+

y

=

18 5

Left side of the equation =

9

y

    The equation is transformed into :

9

y

=

18 5

    The coefficient of the unknown number is reduced to 1 :

y

=

18 5

÷

9

=

18 5

×

1 9

=

2 5

×

1

    We obtained :

y

=

2 5

    This is the solution of the equation.

    Convert the result to decimal form :

y

=

0.4

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