A student solved the problem below but made an

error.

- 3x = 12

+3 + 3

x = 15

Question

Kaitlynn Alvarez

7 February, 20:03

+5

Answers (2)

Know the Answer?

Zaniyah Townsend · Answer 1

Division should be used instead of multiplication

-3x=12

x=-4 (divide by - 3)

Kinley Rhodes · Answer 2

Because - 3x is one term, you need to divide both sides by - 3, not add 3 to both sides:

-3x = 12

Divide both sides by - 3:

-3x/3 = 12/-3

x = - 4

A student solved the problem below but made anerror.- 3x = 12+3 + 3x = 15