Answer:
x = 4.
Step-by-step explanation:
sqrt(2x+1) - 4 = -1
sqrt(2x+1) = 4 - 1
sqrt(2x+1) = 3
Square both side:
2x + 1 = 9
2x = 8
x = 4
Answer:
[tex]x = 4[/tex]
Step-by-step explanation:
Solve for x:
[tex]\sqrt{2x + 1} - 4 = -1\\\\\textrm{1. Add 4 to both sides}\\\sqrt{2x + 1} -4 + 4 = -1 + 4\\\\\textrm{2. Simplify}\\\sqrt{2x + 1} = 3}[/tex]
[tex]\textrm{3. Square both sides:}\\2x + 1 = 9[/tex]
[tex]\textrm{4. Subtract 1 from both sides}\\2x = 9 - 1 = 8\\\\\textrm{5. Divide by 2 both sides:}\\x = 4[/tex]
