Respuesta :
Answer:
X=-6
Step-by-step explanation:
to understand this
you need to know about:
- equation
- PEMDAS
let's solve:
- add 12 to both sides:-5x-12+12=18+12=>-5x=30
- divide both sides by-5:-5x/-5=30/-5
- therefore x=-6
Answer is -6 because you add 12 to 18 = 30 then you divide 30 and -5 which gives you -6