Izzkimisc1obe3ace Izzkimisc1obe3ace

21-02-2017
Mathematics

contestada

If 21 more than 3 times a number is -15, what is the number?
-12
2
12
-2

Respuesta :

timijebs timijebs

23-02-2017

21+3x=-15
3x=-15-21
3x=-36
x=-36/3
x=-12

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