Пожалуйста посчитайте решить 0,7+(х+2) = 2,5(1+х)-3,1 = 50,1(х+3) = 91,5(4-х) = 6

0,7+(х+2) = 2,5

0.7+x+2 = 2.5

x = 2.5-0.7-2

x = -0.2

(1+х)-3,1 = 5

1+x-3.1 = 5

x = 5-1+3.1

x = 7.1

0,1(х+3) = 9

0.1x+0.3 = 9

0.1x = 9-0.3

0.1x = 8.7

x = 87

1,5(4-х) = 6

6-1.5x = 6

-1.5x = 6-6

-1.5x = 0

x = 0