Can anyone help me? I couldn't solve it
“By its very nature, history is always a one-sided account.”
― Dan Brown, The Da Vinci Code
Discuss the above quote in light of your own reading of Pontiac’s “Speech at Detroit.” Highlight the parts you think have been tampered with so as to align and therefore serve the narrative of the British colonists.

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

declare war, appoint military officers, sign treaties, make alliances

the south did not want the federal laws to overrule the state laws.