7x-x^2=12

Simple and best practice solution for 7x-x^2=12 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 7x-x^2=12 equation:


Simplifying
7x + -1x2 = 12

Solving
7x + -1x2 = 12

Solving for variable 'x'.

Reorder the terms:
-12 + 7x + -1x2 = 12 + -12

Combine like terms: 12 + -12 = 0
-12 + 7x + -1x2 = 0

Factor a trinomial.
(-4 + x)(3 + -1x) = 0

Subproblem 1

Set the factor '(-4 + x)' equal to zero and attempt to solve: Simplifying -4 + x = 0 Solving -4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + x = 0 + 4 x = 0 + 4 Combine like terms: 0 + 4 = 4 x = 4 Simplifying x = 4

Subproblem 2

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

Solution

x = {4, 3}

See similar equations:

| 15n^2+15n/15n^3 | | 2x^2-5x-15=0 | | 64a^2-81= | | 4-p+8=12p-32 | | 3p^2+15p/p+5 | | 011x^2-7= | | 8-7=29 | | 0.6x^2+0.9x+0.3=0 | | V+1/v^2-4v-5 | | 7y-5x=20 | | -5y+7x=20 | | y=-x+2X-1 | | -15=-3/5n | | 74-6x=3x+24 | | 4x-4=13x+67 | | 4x-4=13x+37 | | h^2+2h=0 | | 9-10x=74-24x | | 30x^4+29x^2-7=0 | | 30x^2+29x^2-7=0 | | 5x-11=13x-49 | | n-3/8+1/8 | | 6y+30=-2y-2 | | b/4=8 | | t^2=t+110 | | 386+2x/7=80 | | 86-6x=10x+24 | | 6(x-5)=4x | | (4x^2+x+15)/(x-2) | | 4(1-6r)=-17-3r | | 79+82+72+60+93+2x/7=80 | | 10n(8-n)= |

Equations solver categories