emoniclark18
emoniclark18
07-09-2016
Mathematics
contestada
3a + 21 = 7 - 4a what's the answer
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sammibrisky
sammibrisky
07-09-2016
after simplifying a= -2
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Willchemistry
Willchemistry
07-09-2016
3a + 21 = 7 - 4a
3a + 4a = 7 - 21
7 a = -14
a = - 14 / 7
a = - 2
hope this helps!
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