Final Answer:
The solution to the equation 21(10x−8)=5x is 0.82. None of the given options is answer.
Explanation:
To solve the equation 21(10x−8)=5x, we first expand the left-hand side of the equation:
210x - 168 = 5x
Then, we simplify the equation by moving all the terms to one side:
205x = 168
Finally, we solve for x by dividing both sides by 205:
x = 168/205 ≈ 0.82
None of the given options is answer.