Question

3. Решите уравнения: (134+x)-583=426; 475-(x+671)=325; 1) 2) 3) 160: (y+5) = 20; 4) (12m-5m) : 4 = 14; 5) 132-9(x-5) = 69.
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Answer 1

Ответ:

Пошаговое объяснение:

1)

(134 + x) - 583 = 426

134 + х = 426 + 583

134 + х = 1009

х = 1009 - 134

х = 875

2)

475- (x+671) = 325

х + 671 = 475 - 325

х + 671 = 150

х = 150 - 671

х = -521

3)

160: (y+5) = 20

у + 5 = 160 : 20

у + 5 = 8

у = 8 - 5

у = 3

4)

(12m-5m) : 4 = 14

7m : 4 = 14

7m = 14 * 4

7m = 56

m = 56 : 7

m = 8

5)

132-9(x-5) = 69

132 - 9х + 45 = 69

-9х = 69 - 177

-9х = - 108

х = - 108 : (-9)

х = 12