Question

пж 2 клас срочнооо дам 25​

Answer 1

Ответ:

(((х+3)-7)+8):3=7

((х+3)-7)+8=21

(х+3)-7=13

х+3=20

х=17

Answer 2

$(x + 3 - 7 + 8) \div 3 = 7 \\ x + 3 - 7 + 8 = 7 \times 3 \\ x + 3 - 7 + 8 = 21 \\ x + 3 - 7 = 21 - 8 \\ x + 3 - 7 = 13 \\ x + 3 = 13 + 7 \\ x + 3 = 20 \\ x = 20 -3 \\ x = 17$

х=17 ; 20 ; 13 ; 21