Step-by-step explanation:
<h2>Elimination Method</h2>
(x+ 2y=6)2
(2x+4y=12)1
<h3> 2x+4y=12</h3><h3>- 2y+4y=12</h3>
<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>
<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>0</u><u>+</u><u>0</u><u>=</u><u>0</u>
<h3 />
Download photomath it solves and shows the steps
Answer: 23 cm(Hope it's Right!)
Step-by-step explanation:
Write Lin as L and Chen as C
So put 25cm+8cm
To subtract fractions, let's put a generic example.
Be the fractions
(a / b) - (c / d)
With a, b, c and d other than zero.
The subtraction of fractions is given by:
(a / b) - (c / d) = ((a * d) - (c * b)) / (b * d).
If the fractions have the same denominator then the subtraction is
(a / b) - (c / b) = (a-c) / (b)
answer
(a / b) - (c / d) = ((a * d) - (c * b)) / (b * d)
(a / b) - (c / b) = (a-c) / (b)
Consider the given monomials. Let us determine the sum of these monomials,
1. 
= 
Therefore, the sum of the given monomials is
.
2. 
= 
= 
Therefore, the sum of the given monomials is
.
3. 
= 
Therefore, the sum of the given monomials is
.
4. 
= 
= 
Therefore, the sum of the given monomials is
.