SOLUTION: Solve a) 4√(2x+7) - 5 = 7 Can you please help me out? Thanks so much in advance:) Can you also show the steps it would really help me understand better:)

Algebra ->  Equations -> SOLUTION: Solve a) 4√(2x+7) - 5 = 7 Can you please help me out? Thanks so much in advance:) Can you also show the steps it would really help me understand better:)      Log On


   

Question 750164: Solve
a) 4√(2x+7) - 5 = 7
Can you please help me out? Thanks so much in advance:)
Can you also show the steps it would really help me understand better:)
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Your use of grouping at least makes clear what you start with.

4%2Asqrt%282x%2B7%29-5=7
4%2Asqrt%282x%2B7%29=7%2B5=12
sqrt%282x%2B7%29=12%2F4=3
%28sqrt%282x%2B7%29%29%5E2=9
2x%2B7=9
2x=9-7=2
x=1 DONE