Concept
You are to make y the subject of the formula or subject of the relation.
Next, write the equation and solve for y.
c = 7(y - k)
first, multiply 7 with y and k to remove the bracket.
c = 7y - 7k
Next, move negative 7k to the left of the equation.
c + 7k = 7y
Divide through by 7 to make y subject of the relation.
[tex]\begin{gathered} We\text{ have} \\ \frac{c\text{ + 7k}}{7}\text{ = y} \\ or \\ y\text{ = }\frac{c}{7}\text{ + }\frac{7k}{7} \\ y\text{ = }\frac{c}{7}\text{ + k} \end{gathered}[/tex]Final answer
y = c/7 + k or y = (c + 7k) /7
