There is a 20% sale on in Topshop. The bag I want is now £60. What was the original cost of my bag?
2 answers:
You might be interested in
⇒I will first isolate y together with its coefficient k by placing to the right hand side...
⇒Now to leave y independent we have to divide ky by the coefficient of y which in this case is k.
⇒Meaning k will divide all the terms in the equation.
⇒Attached is the answer.