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Simora [160]
3 years ago
12

(7t-2)-(-3t+1)=-3(1-3t)

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
5 0
First you need to multiple minus in second bracket, also in other side you need to multiple - 3 in bracket

7t - 2 + 3t - 1 =  - 3 + 9t \\  \\ 10t - 3 =  - 3 + 9t \\ 10t - 9t =  - 3 + 3 \\ t = 0
Final answer is 0
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