Final answer:
The expression that equals b - 2c in standard form is -7t + 3.
Step-by-step explanation:
To find the expression that equals b - 2c in standard form, we substitute the given values of b and c into the expression.
Given: b = -t - 1 and c = 3t - 2
Substituting, we get: b - 2c = (-t - 1) - 2(3t - 2)
Expanding and simplifying, we have: b - 2c = -t - 1 - 6t + 4
Combining like terms, we get: b - 2c = -7t + 3
Hence, the expression b - 2c in standard form is -7t + 3.