Question

Решите уравнения 1) 80-(35,6+х)=11,5 2) (62,4+у)-13,4=91 3) 9,15+(х-8,5)=21,77 4)0,175-(0,03-х)=0,15 5) (50-х)+7,16=8,132 6) 100,3-(9,2-х)=97,6

Answer 1

Ответы

1. х=-32,9

2. х= 42

3. х= 21,12

4. х= 0,005

5. х= 49,028

5. х= 6,5

Answer 2

80 - (35.6 + x) = 11.5

44.4 - x = 11.5

x = 44.4 - 11.5

x = 32.9

(62.4 + y) - 13.4 = 91

49 + y = 91

y = 91 - 49

y = 42

9.15 + (x - 8.5) = 21.77

x - 8.5 = 21.77 - 9.15

x - 8.5 = 12.62

x = 12.62 + 8.5

x = 21.12

0.175 - (0.03 - x) = 0.15

0.175 - 0.03 + x = 0.15

x = 0.15 - 0.175 + 0.03

x = -0.005

(50 - x) + 7.16 = 8.132

50 - x = 8.132 - 7.16

50 - x = 0.972

x = 50 - 0.972

x = 49.028

100.3 - (9.2 - x) = 97.6

100.3 - 9.2 + x = 97.6

x = 97.6 - 100.3 + 9.2

x = - 3.5