Question

-7 + x =-10

Answer 1

Add 7 to both sides.

Answer 2

\(\normalsize\color{black}{ -7 + x =-10\LARGE\color{white}{ \rm │ }}\) adding 7 to both sides,
\(\normalsize\color{black}{ -7 + x \color{royalblue}{+7}=-10\color{royalblue}{+7}\LARGE\color{white}{ \rm │ }}\)
\(\normalsize\color{black}{ x=?\LARGE\color{white}{ \rm │ }}\) (you tell me)

Answer 3

toan 8 cho tam giac abc vuong tai a co j la trung diem bc tu j ke ji vuong goc voi canh ac tai i lan luoc lay diem m,n tran canh ac sao cho am=cn chung minh ij la truc doi xung cua doan thang ac

Answer 4

chi giup minh voi