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tatumlee
 one year ago
5x102=13
I know this is a basic equation but I'm very rusty on algebra can someone help me with this?
tatumlee
 one year ago
5x102=13 I know this is a basic equation but I'm very rusty on algebra can someone help me with this?

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Photon336
 one year ago
Best ResponseYou've already chosen the best response.1step one, we must isolate x, we do this by adding 102, (which is the opposite of addition) to both sides. 5x102 = 13 + 102 +102 5x = 115 5 5 divide both sides by 5 x = 23

anonymous
 one year ago
Best ResponseYou've already chosen the best response.05x102=13 first, add 102 both side 5x=115 then divide both side by 5 to gt the x by itself and there is the answer

tatumlee
 one year ago
Best ResponseYou've already chosen the best response.0And that works for most basic equations in algebra?

Photon336
 one year ago
Best ResponseYou've already chosen the best response.1@tatumlee the idea behind these equations is that you must always isolate x, and whatever operation you do to one side, you must do to the other

Photon336
 one year ago
Best ResponseYou've already chosen the best response.1@tatumlee if I gave you say kind of similar to what you had before 2x+8 = 20 how would you solve it?

tatumlee
 one year ago
Best ResponseYou've already chosen the best response.0I would add 20 to both sides?

Photon336
 one year ago
Best ResponseYou've already chosen the best response.1@tatumlee we need to get x BY itself FIRST

Photon336
 one year ago
Best ResponseYou've already chosen the best response.1So we would subtract 8 from both sides

tatumlee
 one year ago
Best ResponseYou've already chosen the best response.0How do you know what parts to add to both sides or subject or something

Photon336
 one year ago
Best ResponseYou've already chosen the best response.1yeah that's a good question, you look at what you have in the equation

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0subtract 8 both side and you'll get 2x=12 divide both side by 2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0when you look at the equation 2x+8=20, you want to get the 2x by itself in one side, so the only way you can do that is to subtract 8 to cancel out the 8's or make it zero. You see that positive8  8=0. The rule is that if you subtract 8 one side, you MUST do the same to the other side of the equation too. If the 8 was a negative (8) , you would add 8 to make them zero. hope you understand it
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