Y-(357+x)=253 y=960 Помогите!!!

Question

Y-(357+x)=253 y=960 Помогите!!!

Answer 1

960 - (357 + х ) = 253
357 + х = 960 - 253
357 + х = 707
х = 707 - 357 
х = 350

Answer 2

960-(357+х)=253
-(357+х)=253-960
-(357+х)=-707
-357-х=-707
-357+707=х
Х=350