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How do you solve #21 + m = 8 m - 3 ( 3 m - 3 )#?

Answer 1

Eva Abramson

By arranging the equation

#21 + m = 8m - 3(3m-3)#

First get rid of the paranthesis:

#21 + m = 8m -9m + 9#

Now collect terms including m on the lest hand side and numbers on the other:

#m - 8 m + 9 m = 9 - 21#

#2 m = -12#

#m = -12/2 = -6#

Your answer is #m = -6#

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Answer 2

Jameson Allen

To solve the equation 21 + m = 8m - 3(3m - 3), first distribute the -3 to both terms inside the parentheses on the right side of the equation. Then, combine like terms and simplify the equation. Next, move all terms involving 'm' to one side of the equation and all constant terms to the other side. Afterward, solve for 'm' by isolating it on one side of the equation.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.