Answer:
x=121
Step-by-step explanation:
√x+1-4=8
1) Combine alike terms:
√x-3=8
2) Add 3 to both sides:
√x=11
3) Cancel the <u>square root</u> by squaring both sides:
566
5k and -3k are like variables
constants 7 and -2 are like terms
5+2k+n is equivalent expression