Solve m/n + 3(-m): Algebraic Expression Evaluation with Given Values

Let's start with the first option.

Let's substitute the given data into the expression:

$\frac{3}{-0.2}+3(-3)=$

We'll solve the exercise from left to right, first converting 0.2 to a simple fraction:

$\frac{3}{-\frac{1}{5}}+3(-3)=$

Now let's solve the multiplication problem, remembering that when we multiply a positive number by a negative number, the result must be negative:

$3\times(-3)=-9$

Now we have the exercise:

$\frac{3}{-\frac{1}{5}}+(-9)=$

Let's convert the division problem to a multiplication problem, remembering to switch between the numerator and denominator of the fraction:

$3\times-\frac{5}{1}+(-9)=$

Let's take -9 out of the parentheses and keep the appropriate sign:

$\frac{3\times(-5)}{1}-9=$$$

$3\times(-5)-9=$

$-15-9=-24$

Let's continue with the second option.

Let's substitute the given data into the expression:

$\frac{-4}{-3}+3(-(-4))=$

Let's solve the exercise from left to right.

Note that we are first dividing a negative number by a negative number, so the result must be positive:

$\frac{4}{3}+3(-(-4))=$

Let's open the parentheses and keep the appropriate sign:

$\frac{4}{3}+3\times(4)=$

Let's solve the multiplication problem:

$\frac{4}{3}+12=$

Let's break down the fraction into an addition problem:

$\frac{3+1}{3}+12=\frac{3}{3}+\frac{1}{3}+12=1+\frac{1}{3}+12=13\frac{1}{3}$

Therefore, the final answer is:

$1=-24,2=13\frac{1}{3}$