Which equation is equivalent to sqrt x +11=15

x=16

Step-by-step explanation:

We are given that

we have to solve this equation for x

in order to do that we need to isolate x first

hence

subtracting 11 from both sides we get

Now we square on both sides we get

hence x =16

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.