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Mathematics 7 Online
Dashaun2:

Jason solved the following equation to find the value for x. –8.5x – 3.5x = –78 x = 6.5 Describe how Jason can check his answer.

Vocaloid:

If x = 6.5, then you should be able to replace "x" with 6.5 in the original equation and have both sides still be equal.

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