Question

200-а=116÷4
980-x=45+347+103
помогите пожалуйста

Answer 1

200-а=116÷4
200-а=29
а=200-29
а=171

980-х=45+347+103
980-х=495
х=980-495
х=485

Answer 2

200-a=116:4
200-a=29
a=200-29
a=171
200-171=116:4
29=29

980-×=45+347+103
980-×=495
×=980-495
×=485
980-485=45+347+103
495=495

Answer 3

5×x=140-70

Answer 4

630÷х=18×5