Answer:
0.6t - 4.3s -2.6
Explanation:
Given the expression
(-3.5t - 4s + 4.5) + (-7.1 - 0.3s + 4.1t)
Collect the like terms
= -3.5t+4.1t-4s-0.3s+4.5-7.1
= 0.6t - 4.3s -2.6
Hence the required expression is 0.6t - 4.3s -2.6
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