Answer:
All real numbers.
Step-by-step explanation:
25-4x=15-3x+10-x
25-4x-(-3x)-(-x)=15+10
25-4x+3x+x=25
25-x+x=25
25=25
This is number a and I will list take the other
Answer:
Step-by-step explanation:
Given
The given equation is 
There are two functions i.e. 
Their intersection gives the solution of the above function
From the graph, we can see that both the graph intersects at two different points i.e. at

Answer:
2x – 4 – 1 + x
Step-by-step explanation: