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Find the error in the solution, and then solve correctly 9x+18+3x=1 9x+18=-2 9x=20 x=-20/9

Find the error in the solution, and then solve correctly 9x+18+3x=1 9x+18=-2 9x=20 x=-20/9
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Find the error in the solution, and then solve correctly 9x+18+3x=1 9x+18=-2 9x=20 x=-20/9

asked
User Noorus Khan
by
7.8k points

1 Answer

3 votes
9x+18+3x=1
The second should be:
12x + 18=1, as you cannot combine -3x and 1 to get -2
To continue:
12x = -17
x = -17/12
answered
User Noori
by
8.4k points
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