3n^2-20n+4=7-4n^2

Simple and best practice solution for 3n^2-20n+4=7-4n^2 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 3n^2-20n+4=7-4n^2 equation:


Simplifying
3n2 + -20n + 4 = 7 + -4n2

Reorder the terms:
4 + -20n + 3n2 = 7 + -4n2

Solving
4 + -20n + 3n2 = 7 + -4n2

Solving for variable 'n'.

Reorder the terms:
4 + -7 + -20n + 3n2 + 4n2 = 7 + -4n2 + -7 + 4n2

Combine like terms: 4 + -7 = -3
-3 + -20n + 3n2 + 4n2 = 7 + -4n2 + -7 + 4n2

Combine like terms: 3n2 + 4n2 = 7n2
-3 + -20n + 7n2 = 7 + -4n2 + -7 + 4n2

Reorder the terms:
-3 + -20n + 7n2 = 7 + -7 + -4n2 + 4n2

Combine like terms: 7 + -7 = 0
-3 + -20n + 7n2 = 0 + -4n2 + 4n2
-3 + -20n + 7n2 = -4n2 + 4n2

Combine like terms: -4n2 + 4n2 = 0
-3 + -20n + 7n2 = 0

Factor a trinomial.
(-1 + -7n)(3 + -1n) = 0

Subproblem 1

Set the factor '(-1 + -7n)' equal to zero and attempt to solve: Simplifying -1 + -7n = 0 Solving -1 + -7n = 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 + -7n = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -7n = 0 + 1 -7n = 0 + 1 Combine like terms: 0 + 1 = 1 -7n = 1 Divide each side by '-7'. n = -0.1428571429 Simplifying n = -0.1428571429

Subproblem 2

Set the factor '(3 + -1n)' equal to zero and attempt to solve: Simplifying 3 + -1n = 0 Solving 3 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1n = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1n = 0 + -3 -1n = 0 + -3 Combine like terms: 0 + -3 = -3 -1n = -3 Divide each side by '-1'. n = 3 Simplifying n = 3

Solution

n = {-0.1428571429, 3}

See similar equations:

| 5(y+7)-3y=25 | | 6x+3=12+4x | | (3w+24)(w^2-5w+4)=0 | | 4(x-2)-(x-6)=7 | | 7n^4-20n-3=0 | | 2x+2(3x-1)=30 | | 6m+4n-3m+11m= | | 4(5-t)-(2-2t)=9 | | 4+9x-27=16x+5-7x | | 11-y=209 | | 4=1/2x-4 | | 6x+11y= | | 0.5x+0.5=4-16x+13 | | 3(y+8)+2y=9 | | 2x^3-3x+4=0 | | 8x-(5x-11)=38 | | 2x+2(x-3)=-14 | | (3-8)(-4-6)= | | 7-3*(-5)-8= | | 7-8x-3=44+4x-12 | | 7y+2y-14=5y+5-2 | | -6v+2(v+4)=24 | | 6x^2+C-15=8 | | 7y^5=-1512y^2 | | 6x=28+3x-2+6x | | (8x+1)(x+2)=0 | | 5sin(i)=1 | | 16x-8=x+4 | | 3x-4=3(x-8) | | (-18)(-1)= | | 5y-14=5y+7 | | -8x+14x=0 |

Equations solver categories