The symbol is the electric current that is inputted into the circuit.
Answer:

Step-by-step explanation:
7x + 24x = 25 x
31 x = 25 x
Subtracting 25x to both sides
31x - 25x = 0
6x = 0
Dividing both sides by 6
=> x = 0
Answer:
m = -2
b = 3.5 or (0, 3.5)
Step-by-step explanation:
y = mx + b
m = slope
b = y-intercept
y − 3.5 = −2x
y = -2x + 3.5
m = -2
b = 3.5
c square
its making me write 20 more characters
ignore this
the answer is c squared
Z - z + 3 = z + 5
0 + 3 = z + 5
3 = z + 5
3 + z = 5
This can be simplified to 3 + z = 5.
This has one solution, 2.