The frist two have been answered.
For the third one...
Divide -2/3 on both side (or multiply by -3/2)
Then add 2 on both sides.
Result: -4
The frist two have been answered.
For the third one...
Divide -2/3 on both side (or multiply by -3/2)
Then add 2 on both sides.
Result: -4