Question

D. Решите уравнение:
а) 10 – 2,4х = 3,16;
6) (y + 26,1) · 2,3 = 70,84;
B) (2 - 1,2): 0,6 = 21,1;
г) 3,5т + т = 9,9;
д) 4,2p - p = 5,12;
е) 8,2t – 4,4t = 38,38; ;
*) (10,49 - s): 4,02 = 0,805;
3) 9k - 8,67k = 0,6699.
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Answer 1

А)

$10 - 2.4x = 3.16 \\ - 2.4x = 3.16 - 10 \\ - 2.4x = - 6.84 \\ x = 2.85$

Б)

$(y + 26.1) \times 2.3 = 70.84 \\ 2.3y + 60.03 = 70.84 \\ 2.3y = 70.84 - 60.03 \\ 2.3y = 10.81 \\ y = 10.81 \div 2.3 \\ y = 4.7$