When the soviet union spent too much money on their military, what happened?

When Soviet leaders spent too much money on their military, the military was able to get the best managers, labor and materials.

This caused the civilian sector of the economy to be unable to provide enough goods for the populace, thus contributing to the poor economic growth of the Soviet Union in the civilian sector.

Unequal military spending led to the destabilization of the economy. This caused the eventual collapse of the Soviet Union

Explanation: Military spending, especially during the Cold War led to the destabilization of the Soviet economy.

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69