Question

составьте по рисунку 2.19 уравнение и решите его.

Answer 1

1) 75-x = 46
x = 75-46
x = 29

2) 54+x+32 = 96
x+86 = 96
x = 96-86
x = 10

3) 78+3x-25 = 104
3x+53 = 104
3x = 104-53
3x = 51
x = 51:3
x=  17

4) x+3x+3x+29 = 155
7x+29 = 155
7x = 155-29
7x = 126
x = 126:7
x = 18