Hey - you know that folk were doing this in the days before calculators and computers. It can be done.
Graphing is one approach.
Just plot the Y values resulting from the X values you try.
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The real life example of a linear eqaution problem could be the comparison of somthing changing to something else. There can be many ways a linear equation can be used in real life from complex exponential graphs that explain economics to a simplistic problem comparing the arm span to height. For example: y=2x-1 could be the equation for arm span. (y) being arm span (x) being height This uses the concept of slope or rate. So the y(arm span) depends on the other variable x(height) to find y's value. Hope this helps :) -Leonard
A differential equation is a tool to certains carrers to find and solve all kinds of problems, in my case i'm a civil engineer and i use this tool to solve problems in the area of hidraulics, and in the area of structures. The differencial ecuations have all kinds of uses in the area of engieneering and in other fields too
Your age is a linear function (of time).
Well, we need to know what the problem is. If you have an equation with a variable in it, like 3x = 9, you need to solve for x, i.e., get x on one side and anumber on the other side. An equation can also be like 2 + 2 = 4, which is already fully given to you. An equation could be anything with an equals sign (=), including the following:42 = the meaning of life
My gas gauge has been reading ' E ' for the last 20 miles and I'm starting to worry.Finally, the tension is killing me. I bite the bullet and pull into a gas station, wherethe sign out front says " 2.67 ". I have $ 11.22 in my pocket. What's the most gasI can put into the car ?Of course, nothing like this has ever happened to you; so you've never had to solvea linear equation since you were in high school.