Can someone help me with this?

Question

A number is doubled and then the product is increased by 6. This sum is then multiplied by -3, and the result is 54 greater than three times the opposite of the number. What is the number?

Answer 1

-3(2x+6)=54+3(-x)

-6x -18 = 54-3x

3x =-18-54= -72

x = -72/3 =-24

x=-24

that assumes that what you meant by "opposite of the number" as just changing its sign