What is this answer? 3 (2x + 1) + X = - 39

x = 6

Step-by-step explanation:

3 (2 x + 1) + x = - 39

3 (2 x + 1) = 6 x + 3:

6 x + 3 + x = - 39

Grouping like terms, 6 x + x + 3 = (6 x + x) + 3:

(6 x + x) + 3 = - 39

6 x + x = 7 x:

7 x + 3 = - 39

Subtract 3 from both sides:

7 x + (3 - 3) = - 3 - 39

3 - 3 = 0:

7 x = - 3 - 39

-3 - 39 = - 42:

7 x = - 42

Divide both sides of 7 x = - 42 by 7:

(7 x) / 7 = (-42) / 7

7/7 = 1:

x = (-42) / 7

The gcd of - 42 and 7 is 7, so (-42) / 7 = (7 (-6)) / (7*1) = 7/7*-6 = - 6:

Answer: x = - 6