SOLUTION: Please help me to do this equation 15-4x=42-7x

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Question 33916This question is from textbook
: Please help me to do this equation 15-4x=42-7x This question is from textbook

Answer by fanism(39) About Me  (Show Source):
You can put this solution on YOUR website!
15-4x=42-7x
-4x+7x = 42-15
3x = 27
x = 9