Why are there two equals signs in the first line? Is there a typo error?
Why do you have three separate equations? They have different answers.
Surely you can finsih each, and solve for x.
3x=13x=96
-6x-11x=-136
6.4x-2.3x=-65.6
3 answers
-6x-11x=-136
-17x=136 Divide with -17
x= -8
6.4x-2.3x=-65.6
4.1x=65.6 Divide with 4.1
x=16
-17x=136 Divide with -17
x= -8
6.4x-2.3x=-65.6
4.1x=65.6 Divide with 4.1
x=16
all you do is combine them.