Question

помогите пожалуйста сделать уравнения!!!​

Answer 1

Ответ:

вот, возможны ошибки, просто сделайте небольшую проверку

Answer 2

Ответ:

№109 - 30, 3, 29, 5187, 12, 5

№110 - 9, 2, 45, 8, 6, 3

Пошаговое объяснение:

№109

1) (х-16)*9 = 126; 9х-144 = 126; 9х = 126+144; 9х = 270; х = 270:9; х = 30

2)28*(х+5)=224; 28х+140 = 224; 28х = 224-140; 28х = 84; х = 84:28; х = 3

3) (х+76):7 = 15; х+76 = 15*7; х+76 = 105; х = 105 - 76; х = 29

4) 144:(х-3) = 36; х-3 = 36*144; х-3 = 5184; х = 5184+3; х = 5187

5) 21*(у-8) = 84; 21у-168 = 84; 21y = 84+168; 21y = 252; у = 252:21; у = 12

6) (х+67):18 = 4; х+67 = 4*18; х+67 = 72; х = 72-67 = 5

№110

1) (12m-5m)*4 = 252; 7m*4 = 252; 7m = 252:4; 7m = 63; m = 63:7; m = 9

2) (4n+3n)*11 = 154; 7n*11 = 154; 7n = 154:11; 7n = 14; n = 14:7; n = 2

3) 45:(4m-m) = 3; 45:3m = 3; 3m = 3*45; 3m = 135; m = 135:3; m = 45

4) (19n-6n):4 = 26; 13n:4 = 26; 13n = 26*4; 13n = 104; n = 104:13; n = 8

5) (16m+5m):18 = 7; 21m:18 = 7; 21m = 7*18; 21m = 126 ; m = 126:21; m = 6

6) (17n-8n)*13 = 351; 9n*13 = 351; 9n = 351:13; 9n = 27; n = 27:9; n = 3