Answer:
[tex]x=-7[/tex]
Step-by-step explanation:
We want to solve
5(-2x-3) - 4x -5 =78
We expand to get:
[tex]-10x-15-4x-5=78[/tex]
We group the similar terms to get:
[tex]-10x-4x=78+20[/tex]
Combine similar terms
[tex]-14x=98[/tex]
Divide through by -14
[tex]x=\frac{988}{-14}=-7[/tex]