SOLUTION: My question says to solve the equation and check the solution. 7= square root of 2x+3 Could you help me with this? thanks!

Question 5619: My question says to solve the equation and check the solution.
7= square root of 2x+3
Could you help me with this? thanks!

Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Since you have a square root on one side of the equation, think about squaring both sides as the first step in the solution.
Square both sides.
49 = 2x + 3 Subtract 3 from both sides.
46 = 2x Divide both sides by 2.
x = 23.
You can check this by substituting the 23 into the original equation wherever an x appears and see that the two sides are equal.

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