Respuesta:
Explicación paso a paso:
3x-21-(2x-6)=18
3x-21-2x+6=18
x-15=18
x=33
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Verified answer
Respuesta:
Explicación paso a paso:
3x-21-(2x-6)=18
3x-21-2x+6=18
x-15=18
x=33