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almond37 [142]
3 years ago
7

2r - 3.1 =1.7 ; 4t + 3.5 =12.5 ; 8m - 5.5 =10.1 i really need help plzzzzzzz

Mathematics
1 answer:
IRISSAK [1]3 years ago
6 0
2r - 3,1 = 1,7

<span>Keep the numbers with incognito on the left and the numbers without incognito on the right. Exchanging the signs when changing sides if applicable.
</span>2r = 1,7 + 3,1
2r = 4,8
r =  \frac{4,8}{2}
\boxed{r = 2,4}


--------------------------------
4t + 3,5 = 12,5
<span>Keep the numbers with incognito on the left and the numbers without incognito on the right. Exchanging the signs when changing sides if applicable.
</span>4t = 12,5-3,5
4t = 9,0
t =  \frac{9,0}{4}
\boxed{t = 2,25}
-------------------------------------

8m - 5.5 = 10.1
<span>Keep the numbers with incognito on the left and the numbers without incognito on the right. Exchanging the signs when changing sides if applicable.
</span>8m = 10,1 + 5,5
8m = 15,6
m =  \frac{15,6}{8}
\boxed{m = 1,95}



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