the square root of 1- 3x - 3 = 10 this is a solve and check equation and I do not know how to attach a file from here so please help i can put the equation in if you can help me please and thank you :)

Question

anonymous · Answer

square both sides

anonymous · Answer

$$\sqrt{1-3x}-3=10$$

anonymous · Answer

add 3 to both sides then square both sides

anonymous · Answer

so i wud add 3 to - 3x and -3 ?

anonymous · Answer

if you add 3 to both sides you end up with sqrt(1-3x) = 13
square both sides
you get 1-3x = 13^2 
1-3x = 169

anonymous · Answer

im confused so the answer is 169 ?

anonymous · Answer

no the answer is -58