If 1+1=2 then why is 2+-1=1and why is 2+-1++1=-2?

when 2+-1= 1 that means when two signs are together like these+- then the things are getting multiplied then when you multiply +-the ans will be + so it = +1

when 2+-1++1=-2 thats +- =+ . ++=- so the answer is 2+-1++1=-2.

Step-by-step explanation:

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logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.

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step-by-step explanation: