Question

4х-7=9 и х+5m=-9 ?
помогите плизз​

Answer 1

4х-7=9

4х=9+7

4х=16

х=4

х+5m=-9

5m=-9-x

m=-9/5-1/5x

Answer 2

Ответ:

4x=9+7. 4×=16. x=16/4. x=4