MATH
posted by Jonathan .
X4=3x+12
X=?
please help

Add 4 to both sides
x = 4 + 3 x + 12
combine like terms (4 and 12)
x = 3 x + 16 
x4=3x+12
12 12
x16=3x
x x
16=2x
x=8 
I get the same answer, Devin.

Add 4 to both sides
x = 4 + 3 x + 12
combine like terms (4 and 12)
x = 3 x + 16
subtract 3 x from both sides
 4 x = 16
divide both sides by  4
x = 4 
Add 4 to both sides
x = 4 + 3 x + 12
combine like terms (4 and 12)
x = 3 x + 16
subtract 3 x from both sides
 2 x = 16
divide both sides by  2
x = 8
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