a(n)=-7-2(n-1)

Simple and best practice solution for a(n)=-7-2(n-1) equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for a(n)=-7-2(n-1) equation: 


Simplifying
a(n) = -7 + -2(n + -1)

Multiply a * n
an = -7 + -2(n + -1)

Reorder the terms:
an = -7 + -2(-1 + n)
an = -7 + (-1 * -2 + n * -2)
an = -7 + (2 + -2n)

Combine like terms: -7 + 2 = -5
an = -5 + -2n

Solving
an = -5 + -2n

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Divide each side by 'n'.
a = -5n-1 + -2

Simplifying
a = -5n-1 + -2

Reorder the terms:
a = -2 + -5n-1

See similar equations:

| 4x-(9x-2)=-4(3x+10) | | 6y+3=5y+-1 | | x^2+9x+8=(x+9)(x+h) | | 222/1515=37/n | | 2x+7=14+3x | | 6(2)-6=8 | | 3k^2+7k-4=0 | | cos(2x)=9 | | -8x+14=-2(4x+-7) | | (3x-4x^2)/(x^2-20) | | (3x^(1/2))^4*(1/27x^3 | | 6(6)-3+8=35 | | 4x-6+2y=0 | | -8*(10-x)=-6 | | (6x-8)+(9x+10)= | | 7v^2=15+6v | | 33+8=35 | | 2e^2x+1=6 | | P(x)=40x-.25x^2 | | 4x-2(3-y)=0 | | 3n^2+5n=2 | | z/7-7=3 | | (4x-3)+(-2x+5)= | | 1+5y=14 | | Y=tan1/2(x) | | 3y-14=3 | | 3y+8=3y+12 | | 2x-1/2=3×/4 | | 7=0.2x+25 | | 23y-14-7y=82 | | 8m+5=5 | | V=4/3•3.14r^3 |

Equations solver categories