Answer:
x = 7
Explanation:
3x – 4(x - 4) + 4 = 13
3x - 4x + 16 + 4 = 13
-x + 20 = 13
-x + 20 - 20 = 13 - 20
-x = -7
(-x = -7)/-1
Hope this helps.
7
=> 3x - 4x + 16 + 4 = 13
=> - x + 20 = 13
=> - x = 13 - 20
=> - x = - 7
=> x = 7
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