Answer:
Lezza did make an error, she also needs to multiply -5 by 3.
Step-by-step explanation:
Lezza needs to use the distrubitive property.
Therefore she needs to distrubute 3 to both 2x and -5
If she had done that, the answer would be
4x=7+6x-15
Which simplifies to 4x= -8+6x
