Question

x-6 + 4=15

Answer 1

combine like terms...

Answer 2

\[\Large x \color{red}{-6+4}=15\]
These can be combined...

Answer 3

i think is:

Answer 4

x-6+4-4=15-4
x-6=11
x-6+6=11+6
x=17

Answer 5

what do you think

Answer 6

Perfect.

Answer 7

Good job

Answer 8

x=17