Question

34,2-(17,9-y)=22 16,5-(t+ 3,4)=4,9 r+16,23-15,8=7,1

Answer 1

34,2 - (17,9-у)=22
34,2 - 17,9 + у= 22
16,3+у=22
у= 22-16,3
у= 5,7
Проверим: 34,2- (17,9-5,7)= 34,2- 12,2= 22

16,5 - (t+3.4) =4.9
16.5-t - 3.4 =4.9
13.1 -t =4.9
t= 13.1- 4.9
t= 8.2
Проверим: 16,5 - (8,2+3,4) = 16,5-11,6= 4,9

r +16.23 -15.8 =7.1
r+0.43 =7.1
r=7.1-0.43
r= 6.67
Проверим: 6,67+16,23-15,8= 22,9-15,8=7,1

Answer 2

34,2 - (17,9 - y) = 22

First, let's simplify the equation by solving the expression in the parentheses: 34,2 - 17,9 + y = 22 16,3 + y = 22 y = 22 - 16,3 y = 5,7

Now let's move on to the second equation: 22 + 16,5 - (t + 3,4) = 4,9

Again, simplify the equation by solving the expression in the parentheses: 22 + 16,5 - t - 3,4 = 4,9 38,5 - t - 3,4 = 4,9 35,1 - t = 4,9 - t = 4,9 - 35,1 - t = -30,2 t = 30,2

Finally, let's solve the last equation: 4,9 + r + 16,23 - 15,8 = 7,1

Combine like terms: r + 5,33 = 7,1 r = 7,1 - 5,33 r = 1,77

So, the solutions to the given equations are: y = 5,7 t = 30,2 r = 1,77