Final answer:
x= -0.005. To solve the equation −712x = 3.85, divide both sides by -712. Then, convert the decimal answer into a mixed number in simplest form by using long division.
Step-by-step explanation:
To solve the equation −712x = 3.85, we need to isolate x. We can do this by dividing both sides of the equation by -712. Therefore, x = 3.85 / -712.
However, the question specifically asks for the answer as a mixed number in simplest form. To convert the decimal answer into a mixed number, we divide the whole part by the numerator and write it as a fraction with the remainder as the numerator and the denominator remaining the same.
Using long division, we get the mixed number in simplest form as -0.005 mixed with remainder 395/712. So, x = -0.005 + 395/712.