Question

помогите я не поняла

Answer 1

221 / (y-9) = 17

y-9 = 17*221=3757

y = 3757 + 9

y = 3766

Answer 2

x-8 = 408 / 34

Answer 3

x-8 = 12

Answer 4

x = 12 + 8

Answer 5

x = 20

Answer 6

спасибо

Answer 7

2) 221:(y-9)=17

у-9 = 221:17

у-9 = 13

у=13+9

у=22

3) 34*(х-8)=408

(х-8)=408:34

х-8 = 12

х=12+8

х=20

4) (х+129):17+12

х+129=12*17

х+129=204

х=209-124

х=75

Answer 8

х=204-129

Answer 9

спасибо