Решите уравнения А. x+3*25=87; О. 8*17-x=107; К.555:5-x=74; П. 2x+87=93; М. 3*(35-x)=63
С. (120-x):13=8

А.

x+3*25=87;

x + 75 = 87

x = 87 - 75

x = 12

О.

8*17-x=107;

136 - x = 107

x = 136 - 107

x = 29

К.

555:5-x=74;

111 - x = 74

x = 111 - 74

x = 37

П.

2x+87=93;

2x = 93 - 67

2x = 26

x = 26 : 2

x = 13

М.

3*(35-x)=63

35 - x = 63 : 3

35 - x = 21

x = 35 - 21

x = 14

С.

(120-x):13=8

120 - x = 8 * 13

120 - x = 104

x = 120 - 104

x = 16