Given 43-x = 21, find the value of x.
- x=43-21
- x=43/21
- x=43+21
Explanation from PART66Online
Starting from 43 - x = 21, add x to both sides and subtract 21 to isolate x, giving x = 43 - 21. The operations are a subtraction, not a division or an addition.
Max_Bellamy asked · 29 Nov 2013
Why?
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