10-5+3p+2p=0
5+5p=0
5p=-5
p=-1
Step-by-step explanation:
first step:combine like terms
2nd step:subtracts 5 on both sides
3rd step:divide 5 on both sides
The length would be 85 km
Answer:
x = 12
Step-by-step explanation:
Given
2(x - 3) = 9 + 3(x - 9) ← distribute parenthesis on both sides
2x - 6 = 9 + 3x - 27, that is
2x - 6 = 3x - 18 ( subtract 3x from both sides )
- x - 6 = - 18 ( add 6 to both sides )
- x = - 12 ( multiply both sides by - 1 ), thus
x = 12
The sum of angles of all triangles is 180