Question

28 = 3x – 7x + 4
Check:

Answer 1

x= -6

Explanation:

1. Subtract the x's

28 = -4x + 4

2. Subtract the 4 by both sides

(28 - 4) = -4x + (4-4)

3. Solve

24 = -4x

4. Divide Both sides by -4

24/-4 = -4/-4 x

5. Solve

-6 = x or x = -6

Answer 2

x= -6

Explanation:

28=3x - 7x + 4

Combine Like Terms:

28= -4x + 4

Subract four from both sides (in order to isolate the variable):

24= -4x

Divide by -4 from both sides:

x= -6