7n^2+5=12n

Simple and best practice solution for 7n^2+5=12n 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+5=12n equation:


Simplifying
7n2 + 5 = 12n

Reorder the terms:
5 + 7n2 = 12n

Solving
5 + 7n2 = 12n

Solving for variable 'n'.

Reorder the terms:
5 + -12n + 7n2 = 12n + -12n

Combine like terms: 12n + -12n = 0
5 + -12n + 7n2 = 0

Factor a trinomial.
(5 + -7n)(1 + -1n) = 0

Subproblem 1

Set the factor '(5 + -7n)' equal to zero and attempt to solve: Simplifying 5 + -7n = 0 Solving 5 + -7n = 0 Move all terms containing n to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -7n = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -7n = 0 + -5 -7n = 0 + -5 Combine like terms: 0 + -5 = -5 -7n = -5 Divide each side by '-7'. n = 0.7142857143 Simplifying n = 0.7142857143

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 = {0.7142857143, 1}

See similar equations:

| 6y^2=24-3x^2 | | 5(2b-4)=-2b+16 | | 20x-16+4x= | | -2(3s+1)-5(s-9)= | | 3x^2-8=-5x | | -8+7x=69 | | 8x-4+92=180 | | 15x-4y=10 | | x^3-4x^2+3x+4=0 | | 2x+8=(3) | | 3(2y+4)=30 | | 2(5n-6)+9n= | | 8r^2+31r=4 | | [-x+3]-[x-5]= | | 6(3z-7)= | | -32=4(-3x+7) | | K^2-4k-2=-5 | | g+24=160 | | a./.5-1=10 | | -0.6(3a)= | | 15-3u=2u | | 3(2+d)=d | | 4x^2+6=106 | | (x^3+4)(x+1)=0 | | 4(d+2)-2d=d | | 39.45=1.4X | | t^2-2t=13 | | 3(3w+7)=78 | | -99=-3(-4x+9) | | 3.57=0.2X | | 4v+1(v-5)=0 | | r^2+28r=-23 |

Equations solver categories