Challenging SAT Question - Infinitely Nested Square Root - Find X

This video shows how to solve an infinitely nested square root equation by utilizing a system of equations. ✅Related videos: Solving 2x2 system of equations (substitution) https://www.youtube.com/watch?v=4SH-9L3qDhE&t=3s Solving 2x2 system of equations (elimination) https://www.youtube.com/watch?v=jyvWCA7cO48&t=1s Solving non linear system of equations (circle and line) https://www.youtube.com/watch?v=O2ws2v_8OAc&t=5s Solving non linear system of equations (circle and parabola) https://www.youtube.com/watch?v=qDSed_TNEzo&t=12s System of equations word problem (speed of kayaker & speed of water) https://www.youtube.com/watch?v=OMDcD99MCR4 System of equations word problem (mystery two digit number) https://www.youtube.com/watch?v=7btmQZ9QiO4&t=1s