Final answer:
To find the equivalent expression for 3.6u - 3.3 + 4.3u + 9.33, we combine like terms resulting in 7.9u for the coefficients of 'u' and 6.03 when adding the constants together. Thus, the correct answer is 7.9u + 6.03, making option 1) correct.
Step-by-step explanation:
To find the expression that is equivalent to 3.6u - 3.3 + 4.3u + 9.33, we need to combine like terms. This means we add the coefficients of 'u' together and the constant numbers together.
- First, combine the 'u' terms: (3.6u + 4.3u) equals 7.9u.
- Next, combine the constant terms: (-3.3 + 9.33) equals 6.03.
- Therefore, the equivalent expression is 7.9u + 6.03.
So, the correct answer is option 1) 7.9u + 6.03.