(X*6):8=80 786- (x-273)=129

Question

(X*6):8=80
786- (x-273)=129

Answer 1

1). (x*6):8=80
x*6=80*8
x*6=640
x=640:6
x=106(6)
2).786-(x-273)=129
x-273=786-129
x=557+273
x=830