7n^2-n+1=7

Simple and best practice solution for 7n^2-n+1=7 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 7n^2-n+1=7 equation:


Simplifying
7n2 + -1n + 1 = 7

Reorder the terms:
1 + -1n + 7n2 = 7

Solving
1 + -1n + 7n2 = 7

Solving for variable 'n'.

Reorder the terms:
1 + -7 + -1n + 7n2 = 7 + -7

Combine like terms: 1 + -7 = -6
-6 + -1n + 7n2 = 7 + -7

Combine like terms: 7 + -7 = 0
-6 + -1n + 7n2 = 0

Factor a trinomial.
(-6 + -7n)(1 + -1n) = 0

Subproblem 1

Set the factor '(-6 + -7n)' equal to zero and attempt to solve: Simplifying -6 + -7n = 0 Solving -6 + -7n = 0 Move all terms containing n to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -7n = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -7n = 0 + 6 -7n = 0 + 6 Combine like terms: 0 + 6 = 6 -7n = 6 Divide each side by '-7'. n = -0.8571428571 Simplifying n = -0.8571428571

Subproblem 2

Set the factor '(1 + -1n)' equal to zero and attempt to solve: Simplifying 1 + -1n = 0 Solving 1 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1n = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1n = 0 + -1 -1n = 0 + -1 Combine like terms: 0 + -1 = -1 -1n = -1 Divide each side by '-1'. n = 1 Simplifying n = 1

Solution

n = {-0.8571428571, 1}

See similar equations:

| 5x+5=6x+8 | | -7=-294 | | 0.072=w-3.6 | | 4a+3(15a-27)=-11 | | 81=36+12r | | 31/2+a=53/8 | | 4x+6(x+16)=176 | | 3N-8=N+24 | | 3x(h+287)= | | x^2+1=-3x | | y+9=180 | | 5(ln(x))+5=0 | | 0.072=w-4.9 | | (3x)/10=(5x)/6 | | y+9+x+8=180 | | 3.5=4-3(x) | | 4x+5(4x-10)=94 | | 19*8+52= | | y=10-2 | | -15=4-3(x) | | (200)y=6000 | | 4x+3(x+16)=176 | | W^2+8w=84 | | 8y+9=73 | | 4.12w=70.04 | | 1.00=0.5*x | | -3(1+2b)+7=-23+3b | | (2m+3)(4m+3)= | | 64-255x^2-4x^4=0 | | 7x+45=45 | | a+14+6a+4=180 | | 104/x=13/2 |

Equations solver categories