Solve sqrt(x + 5) = 4.

Solution

Algebra · Medium

Problem

Solve sqrt(x + 5) = 4.

Square both sides:
x + 5 = 16

Subtract 5 from both sides:
x = 11

Check in the original equation:
sqrt(11 + 5) = sqrt(16) = 4

Therefore:
x = 11

Result

x = 11