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How do you solve 2x plus 20?
It is simply 2x+20 which is an algebraic expression that has no equality sign.
What does the division property of equality allow you to do?
you can just use multilecation to do division The division POE (property of equality) Allows you to divide each side of an equation by the same number. If I were solving for x in this equation, I would use the division POE -2x = 4 /-2 /-2 x = -2
How can you use the addition and subtraction properties of equality to produce equivalent inequalities?
This is the kind of thing to which I think you are referring. You have an equation such as 4x + 5 = 2x + 3. You can subtract 2x from both sides to obtain, 2x + 5 = 3, then add -5 to both sides to obtain 2x = -2, then divide both sides by 2 to obtain x = -1. You can do very much the same thing with an inequality such as 4x + 5 lt 2x + 3. The same steps yield x lt -1.
Whai is the solution to Ln 2x plus 9 equals ln 5x?
That all depends.Is it:ln (2x+9) = ln (5x)If it is, the solution can be found by solving 2x+9 = 5x, in which case the answer is x = 3.
Solving 2x plus y equals 10 and y equals x-5 subtitution?
2x+x-5 = 10 2x+x = 10+5 3x = 15 x = 5 and y = 0
