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Mathematics
27 July, 17:12
Simplify - 9 - (12 - 3x)
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Rodolfo Simmons
27 July, 17:31
0
Start by distributing the negative sign:/
-9-12+3x
Simplify:
-21+3x
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Esmeralda Hart
27 July, 17:38
0
First, distribute the - 1
-9-12+3x
Then subtract the - 9 and - 12
-21 + 3x
Add 21 to both sides*
21 = 3x
Divide
x = 7
*I would assume that 0 = - 9 - (12-3x) as it is not mentioned in the description
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