14th square number = 196
6th square number = 36
This is an equation involving x alone, so the most you can do is solve it:

Answer:
10
Step-by-step explanation:
130+40+x =180
x=10
option 2 is correct
No parts are manufactures is when x=0 because it is run 0 hours
y=amount of elctricity needed
y=12(0)+24
y=0+24
y=24
24 watts are used on a day when no parts are manufactured
Answer:
x = 10 is your answer
- Explain -
Step 1: subtract 1 from both sides (subtraction of equality)
which will give us:
2x = 21 - 1
which equals to
2x = 20
Step 2: Divide both sides by 2
which is
2x/2 = 20/2
2/2 = 1 and 20/2 = 10
Therefore the answer is x = 10