Question

пож помагите !!! по понятней!!!!!!! 9(143-13x)=234

Answer 1

9(143-13х)=234
1287-117х=234
-117х=234-1287
-117х=-1053
Х=9

Answer 2

9(143-13x)=234
1287-117x=234
-117x=-1287+234
-117x=-1053
x=9