Hi, how can I solve this equation using algebra? y= 9x+50, many thanks
If you want an equation for x in terms of y, subtract 50 from both sides and then divide both sides by 9.
That is not reaaly "solving" for x; you are just rearranging an equation. To get a numerical value for x (and y), you need a second independent equation.
ok thanks, I also have to solve y=9x+100 as part of the question, is this what you meant by a second independent equation?
Hirxbo
To solve the equation y = 9x + 50 using algebra, you need to isolate the variable x on one side of the equation. Here are the steps:
1. Start with the equation: y = 9x + 50.
2. To isolate the variable x, subtract 50 from both sides of the equation:
y - 50 = 9x.
3. Next, divide both sides of the equation by 9:
(y - 50) / 9 = x.
Hence, the solution for x is given by (y - 50) / 9.