Final answer:
To simplify the given expression, distribute the coefficients and combine like terms.
Step-by-step explanation:
To simplify the expression -0.4(7t + 7) + 0.5(7t - 2), we need to distribute the coefficients onto the terms within the parentheses. This gives us -2.8t - 2.8 + 3.5t - 1, which can be further simplified to 0.7t - 3.8. Therefore, the expression -0.4(7t + 7) + 0.5(7t - 2) can be rewritten in simplest terms as 0.7t - 3.8.
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