Question

Hii i have a question on the value of y

Answer 1

Since the given two angles are complementary, then

The sum of their measures is 90 degrees

Add the two angles and equate their sum by 90 degrees

`3y-4+73^(\circ)=90^(\circ)`

Add the like terms on the left side

`\begin{gathered} 3y+(-4+73)=90 \\ 3y+69=90 \end{gathered}`

Subtract 69 from both sides

`\begin{gathered} 3y+69-69=90-69 \\ 3y=21 \end{gathered}`

Divide each side by 3

`\begin{gathered} (3y)/(3)=(21)/(3) \\ y=7 \end{gathered}`

The value of y is 7