07-01-2016
Mathematics

contestada

Find the value of x in the equation 9 – 4x = 57.

A. –16.5
B. –12
C. 12
D. 16.5

Respuesta :

needhelp123 needhelp123

07-01-2016

9 - 4x = 57
first u would take away 9 on both sides
9-9 - 4x = 57 -9
-4x = 48
then u would divide 4 on both sides
-4x/4 = 48/4
-x = 12
so if negative x (-x) is 12 then positive x will be -12
x = - 12 is ur answer

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