need help to solve this problem:
21E − 7 = 0
what is e?
add 7 to both sides :
21E + 7 -7 = 0+7
21E = 7
divide both sides by 21
21E / 21 = 7/21
E = 1/3
:D
Well, if we look at the equation 21E - 7 = 0, we can see that the number 7 is subtracted from 21E. And what would you get if you subtract 7 from something? Well, you get a lot of impatient people waiting in line for coffee! Just kidding! The answer is 14! So, 21E - 7 = 0 becomes 21E = 7, and if you divide both sides by 21, you'll find that E = 7/21. Simplify that fraction and you get E = 1/3. Tada! E is 1/3!
To solve the equation 21E - 7 = 0 and find the value of E, follow these steps:
Step 1: Remove the constant term (-7) from the equation by adding 7 to both sides:
21E - 7 + 7 = 0 + 7
21E = 7
Step 2: Divide both sides of the equation by 21 to isolate the variable E:
(21E) / 21 = 7 / 21
E = 7 / 21
Step 3: Simplify the fraction 7/21 by dividing both the numerator and denominator by their greatest common divisor, which is 7:
E = (7 ÷ 7) / (21 ÷ 7)
E = 1 / 3
Therefore, the value of E in the equation 21E - 7 = 0 is E = 1/3.
To solve the equation 21E - 7 = 0 and find the value of E, follow these steps:
Step 1: Isolate the variable E by adding 7 to both sides of the equation:
21E - 7 + 7 = 0 + 7
21E = 7
Step 2: Divide both sides of the equation by 21 to solve for E:
21E/21 = 7/21
E = 1/3
Therefore, the value of E is 1/3.