Answered

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what is the solution of 7x+21=21

Sagot :

reoliz
first you subtract from both sides, which then will give you 7x = 0
then you will need to divide, so x=0  will be your finale answer.
its 0 surely
7x+21-21=21-21
7x=0
7x/7=0/7
x=0
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