Question

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Answer 1

Ответ:

a) (x+35)+67 = 855

(x+35) = 855-67

x+35 = 788

x = 788-35

x = 753

b) (x-28)+53 = 60

(x-28) = 60-53

x-28 = 7

x = 7+28

x = 35

c) 55-(42-x) = 35

-(42-x) = 35-55

-42+x = -20

x = -20+42

x = 22

d) (25+x)-32 = 15

(25+x) = 15+32

25+x = 47

x = 47-25

x = 22

Answer 2

Ответ:

a) (x+35)+67 = 855

(x+35) = 855-67

x+35 = 788

x = 788-35

x = 753

b) (x-28)+53 = 60

(x-28) = 60-53

x-28 = 7

x = 7+28

x = 35

c) 55-(42-x) = 35

-(42-x) = 35-55

-42+x = -20

x = -20+42

x = 22

d) (25+x)-32 = 15

(25+x) = 15+32

25+x = 47

x = 47-25

x = 22

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