Mschlagel Mschlagel

31-12-2016
Mathematics

contestada

Which equation has a solution of -2?
A. 5(n + 1) = 2
B. 5 = 3n - 1
C. 4n + 3 = 11
D. 4(1 + n) = -4

Respuesta :

apologiabiology apologiabiology

31-12-2016

subsitute -2 for n and see if we get a true statment

A.
5(-2+1)=2
5(-1)=2
-5=2
false

B.
5=3(-2)-1
5=-6-1
5=-7
false

C.
4(-2)+3=11
-8+3=11
-5=11
false

D.
4(1-2)=-4
4(-1)=-4
-4=-4
true

answer is D

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