Question

Bài 2: Tìm x (2đ)

a) 2x – 49 = 45

b) 145 – (x + 26) = 97

Answer 1

Bài 2: Tìm x (2đ)

a) 2x – 49 = 45

2x = 45 + 49

2x = 94

x = 94 : 2

x = 47

Vậy x = 47

b) 145 – (x + 26) = 97

(x + 26) = 97 + 145

x + 26 = 242

x = 242 - 26

x = 216

Vậy x = 216

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Answer 2

https://i.imgur.com/f7RGrNg.jpg

Answer 3

a) 2x – 49 = 45

2x = 45 + 49

2x = 94

x = 94 : 2

x = 47

b) 145 – (x + 26) = 97

x + 26 = 145 - 97

x + 26 = 48

x = 48 - 26

x = 22