whats this?

Question

0

795

2

23-46=40-?`

Guest May 23, 2017

mathguardian23 · Answer 1 · 2017-05-23T01:57:39

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

TheXSquaredFactor · Answer 2 · 2017-05-23T07:09:43

$?=63$

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.