The answer is (3) if you count them they way they are suppose to be Multiplied if they are counted different you wont get the right answer
<span>Being able to express numbers in its equivalent forms allows you to give more accurate and correct answers. By using equivalents forms you may find a simply and easier way to solve the given equation.
For example, in fraction, by simply expressing equivalent fractions with common denominator, you can easily subtract and add the given numbers in an easy way. There are a lot of numbers that are equivalent, and there are a lot of way to solve a single problem to get a correct answer.</span>
I’m guessing you want to find out (n).
That’s what I did anyway.
The answer is: n=5
Step 1: Subtract 5n from both sides.
3.2
n
+
9
−
5
n
=
5
n
−
5
n
−
1.8
n
+
9
=
0
Step 2: Subtract 9 from both sides.
−
1.8
n
+
9
−
9
=
0
−
9
−
1.8
n
=
−
9
Step 3: Divide both sides by -1.8.
−
1.8
n
−
1.8
=
−
9
−
1.8
n
=
5
I'd go with the subtraction property of equality:
a = b + c precisely when a - b = c
Multiply the first bracket by -4. Multiply the second bracket by -2
-8x+12y+4x-2x-12
Negative and Negative = Positive
Negative and Positive = Negative
Then do -8x+4x-2x
= -6x+12y-12
Answer is D. -6x+12y-12
