carolinekeogh11
carolinekeogh11
15-09-2017
Mathematics
contestada
simplify -9 - (12 -3x)
Respuesta :
jmtorres3423
jmtorres3423
15-09-2017
Start by distributing the negative sign:\
-9-12+3x
Simplify:
-21+3x
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SATnoSTOP
SATnoSTOP
15-09-2017
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
Answer Link
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