Answer:
Solve 6x – 4x – 3 = 11 for x.
Simplifying
x = 7
Step-by-step explanation:
Simplifying
6x + -4x + -3 = 11
Reorder the terms:
-3 + 6x + -4x = 11
Combine like terms: 6x + -4x = 2x
-3 + 2x = 11
Solving
-3 + 2x = 11
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '3' to each side of the equation.
-3 + 3 + 2x = 11 + 3
Combine like terms: -3 + 3 = 0
0 + 2x = 11 + 3
2x = 11 + 3
Combine like terms: 11 + 3 = 14
2x = 14
Divide each side by '2'.
x = 7
P = A.e^(r.t) is the population growth formula, where A is the initial population in a given year, exponent "r" =growth rate and exponent t = time
A₍₁₉₉₅₎ = 184 Mil. after t = 7 years, P₍₂₀₀₂₎ = 188 Mil
Let's calculate te growth rate:
P₍₂₀₀₂₎ = A₍₁₉₉₅₎.e^rt
188 = 184.e(^7r)
188/184 = e^(7r)
ln(188/184) = 7.r.lne
0.0215 = 7.r and r = 0.0030 = 0.3%
Population in 2006
P₍₂₀₀₆₎ = P₍₂₀₀₂₎.e⁽⁰.⁰⁰³ˣ⁴
P₍₂₀₀₆₎ = 188.e⁰.⁰¹² = 190.2 Mil
You just have to combine like terms 4x+5x +12 -
1 = 9x+11 I am not sure if it is 12x or just 12 if it is 12x the answer is 21x-1
