What is the solution set for 7x−4=3x+8 , given the replacement set {2,3,4,5} ?
2 answers:
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First you need to simplify the left side of the equation to get 
Then you add by two on both sides to get
Finally you divide by 2 on both sides to get
Then you add by two on both sides to get
Finally you divide by 2 on both sides to get