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Svet_ta [14]
3 years ago
14

-7x+2=2x+2-9x how many does this equation have how do you know

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
7 0

Step-by-step explanation:

1- -7x+2=2x+2-9x

2- -7x-2x+9x= -2+2 collect the like terms and put them on separate sides (always put x on the left hand side and the others on the right hand side). and always convert + to - and reversed (for example: I put the 2x from the right to the left and changed it to -2x)

3- -9x+9x= -2+2 now work out the sum

4- 0x=0 so x=0

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