Question

Solve for x: 2x – 8 = x – 9

Answer 1

-1

Answer 2

ok, step by step, but try to do the next ones by yourself, ok?
2x - 8 = x - 9
the x on the right side, we bring it to the left side, but change the sign, so.....
2x - 8 - x = - 9
the (-8) on the left side, we bring it to the right side, but change the sign, so....
2x - x = - 9 + 8
Then you just simplify to...
x = -1

OK? :)