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4 votes
-2.5x - 10 = 40 what is the missing variable

2 Answers

2 votes

Answer:

x=-20

Explanation:

-2.5x -10=40

-2.5x -10+10=40+10

-2.5x=50

-2.5x/-2.5=50/-2.5

x=-20

User Felipsmartins
by
3.9k points
4 votes

Answer:

x = -20

Explanation:

1) Isolate x

-2.5x - 10 = 40

+ 10 + 10

-2.5x = 50

------- ------

-2.5 -2.5

x = -20

User Resigned
by
5.0k points