First we set up an “x”, cuz we don’t know the exact percentage and x will help us to find it. Then, we know the salary increased so there must be 1+the percentage. Next, we only have to figure this equation out. Notice you final answer should be the percentage so we change the decimal to percentage.
When we have an equation with 2 variables, and they are of first degree, we can have unlimited number of solutions. The solutions are written as ordered pairs. For any value of x we can find y.
