Answer:
Step-by-step explanation:
3.5(2v - 5*4) = 2.5(3v - 1*2) Collect like factors inside the brackets.
3.5(2v - 20) = 2.5(3v - 2) Remove the brackets.
3.5*2v - 20*3.5 = 2.5*3v - 2.5*2 Combine
7v - 70 = 7.5v - 5 Subtract 7v from both sides.
7v - 7v - 70 = 7.5v - 7v - 5 Combine
-70 = 0.5v - 5 Add 5 to both sides
-70 + 5 = 0.5v Combine on the left
- 65 = 0.5v Divide both sides by 0.5
-65/0.5 = 0.5v/0.5 Combine
-130 = v
Note: See if you can make this check to -980
