1.) Distribute 4 to (3x) & (8):

,

2.) Rewrite the expression:

3.) Combine like terms:

4.) Rewrite the final expression:
Final Answer: <span>

Hope this helps!!
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X ≤ 19.2
..............................
Answer: He now weighs 4.2 kg because 4/10 of 3 is 1.2 and 1.2+3=4.2
-13 because 6 x 2 = 12 plus x = -13 x represents 1 btw
Option A is correct.
Step-by-step explanation:
We need to identify which statement is true in matrix addition.
In matrix addition we just add the corresponding elements.
In the options given only Option A is correct i.e, (n+4)-7 = 18
All other options have error in them.
In Option B there should be -12 instead of +12
In Option C there should be -11 instead of 11
In Option D we are not adding corresponding entries.
So, Option A is correct.
Keywords: Matrix addition
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