Question

X x 1,5 + X x 7,5 + x =11,6

Answer 1

X x (1,5 + 7,5) = 11,6 

X x 9 = 11,6 

X = 1,28

Answer 2

X x(1,5+7,5+1)=11,6

Xx10=11,6

X=11,6:10

X=1,16

Answer 3

X x (1,5 + 7,5) = 11,6 

X x 9 = 11,6 

X = 1,28