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If
-25+k=21, What is the value of
k

If $-25+k=21$ , What is the value of $k$

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Find limits using power and root laws

Full solution

Q. If

-25+k=21

, What is the value of

k

Addition to cancel $-25$ : To solve for $k$ , we need to isolate $k$ on one side of the equation. We can do this by adding $25$ to both sides of the equation to cancel out the $-25$ on the left side. $\newline$ $-25 + k + 25 = 21 + 25$
Simplify by addition: Now, we simplify both sides of the equation by performing the addition. $\newline$ $k = 21 + 25$ $\newline$ $k = 46$
Substitute $k$ back: We have found the value of $k$ . To ensure there is no math error, we can substitute $k$ back into the original equation to check if it satisfies the equation. $\newline$ $-25 + 46 = 21$ $\newline$ $21 = 21$ $\newline$ This is true, so there is no math error.

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