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23-46=40-?`

Guest May 23, 2017
 #1
avatar+80 
0

23-46 would equal negative twenty three, not fourty.

mathguardian23  May 23, 2017
 #2
avatar+2248 
+1

\(?=63\)

 

This is your original equation. I'll replace your question mark with an x instead:

 

\(23-46=40-x\)

 

Now, solve by isolating x:

 

\(23-46=40-x\) Simplify the left hand side of the equation
\(-23=40-x\) Subtract 40 on both sides
\(-63=-x\) Multiply by -1 on both sides
\(x=63\)  
   

 

x=63 is your final answer.

TheXSquaredFactor  May 23, 2017

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