187k views
5 votes
-16 -6v = -2 (8v -7)



What is v ?

User Teqnology
by
5.2k points

1 Answer

4 votes

Answer:

v = 3

Explanation:

Solve for v:

-6 v - 16 = -2 (8 v - 7)

Expand out terms of the right hand side:

-6 v - 16 = 14 - 16 v

Add 16 v to both sides:

16 v - 6 v - 16 = (16 v - 16 v) + 14

16 v - 16 v = 0:

16 v - 6 v - 16 = 14

16 v - 6 v = 10 v:

10 v - 16 = 14

Add 16 to both sides:

10 v + (16 - 16) = 16 + 14

16 - 16 = 0:

10 v = 14 + 16

14 + 16 = 30:

10 v = 30

Divide both sides of 10 v = 30 by 10:

(10 v)/10 = 30/10

10/10 = 1:

v = 30/10

The gcd of 30 and 10 is 10, so 30/10 = (10×3)/(10×1) = 10/10×3 = 3:

Answer: v = 3

User Shaundra
by
5.2k points
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