Solve the equation.%0D%0A %0D%0A–21 = %0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0Am = 7%0D%0Am = 7%0D%0A%0D%0Am = –7%0D%0Am = –7%0D%0A%0D%0Am = –63%0D%0Am = –63%0D%0A%0D%0Am = 63
To solve the equation -21 = m, you need to isolate the variable m.
We can do that by adding 21 to both sides of the equation:
-21 + 21 = m + 21
0 = m + 21
Now, subtract 21 from both sides of the equation:
0 - 21 = m + 21 - 21
-21 = m
Therefore, the solution is m = -21.