Solve the Equation σ_15.11 + σ_16.85 = sqrt σ_1^2/n_1 + σ_2^2/n_2

σ_1 = 3.868
σ_2 = 2.933
n_1 = 45
n_2 = 60

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation:

think the answer would beb

the answer is c hope this