Explicación paso a paso:
1. 5x + (-5x)=0
5x-5x=0
2. 8b + (b)=9b
9b=9b
3. 5/4y² + (-1/4y²)= y²
5/4y²-1/4y²=y²
4/4y²=y²
y²=y²
4. 2a + (-7a)= -5a
2a-7a= -5a
5. 10y² + (10y²)= 20y²
10y²+10y²=20y²
6. -5w + (8w)= 3w
-5w+8w=3w
7. -15a - (-2a)= -13a
-15a+2a= 13a
8. -2y - (-2y)=0
-2y+2y=0
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Verified answer
Explicación paso a paso:
1. 5x + (-5x)=0
5x-5x=0
2. 8b + (b)=9b
9b=9b
3. 5/4y² + (-1/4y²)= y²
5/4y²-1/4y²=y²
4/4y²=y²
y²=y²
4. 2a + (-7a)= -5a
2a-7a= -5a
5. 10y² + (10y²)= 20y²
10y²+10y²=20y²
6. -5w + (8w)= 3w
-5w+8w=3w
7. -15a - (-2a)= -13a
-15a+2a= 13a
8. -2y - (-2y)=0
-2y+2y=0