5(x - 4) = 10

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2 Answers

5(x-4)=10

(x-4)=2

x=2+4

x=6
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       5(x-4)=10

(5·x)-(5·4)=  10   Distributive Property.

        5x-20=  10   Rewrite.

            +20  +20   Addition Property of Equality.

        5x      =   30

        5x/5  =   30/5 Division Property of Equality.

               x  =    6

Check

5(x-4)=10, x=6

5(6-4)=10   Substitute 6 for x.

5(2)    =10    Multiply.

10       =10    smiley

 

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