7x+3=x^2+9

Simple and best practice solution for 7x+3=x^2+9 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+3=x^2+9 equation:


Simplifying
7x + 3 = x2 + 9

Reorder the terms:
3 + 7x = x2 + 9

Reorder the terms:
3 + 7x = 9 + x2

Solving
3 + 7x = 9 + x2

Solving for variable 'x'.

Reorder the terms:
3 + -9 + 7x + -1x2 = 9 + x2 + -9 + -1x2

Combine like terms: 3 + -9 = -6
-6 + 7x + -1x2 = 9 + x2 + -9 + -1x2

Reorder the terms:
-6 + 7x + -1x2 = 9 + -9 + x2 + -1x2

Combine like terms: 9 + -9 = 0
-6 + 7x + -1x2 = 0 + x2 + -1x2
-6 + 7x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-6 + 7x + -1x2 = 0

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

Subproblem 1

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

Subproblem 2

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

Solution

x = {6, 1}

See similar equations:

| 6(q-1)=-6+6q | | 4(n+5)=36 | | p=2(4x)+2(2*x+10) | | 6x+175=10x | | 21cd-3d= | | -4p+16.8= | | 18x-7=x+10 | | 7-6(-3-4r)=-8(4-3r) | | -81=3(5b-2) | | 4(y-1)=6x-1 | | 12y-4xy-4=0 | | x*15=1500 | | 8s+20+15s=19s-20 | | 6a^2+27= | | 3x-4=2(5-x)-3 | | h-34=163 | | 4-12s=-6 | | x=-6y+7 | | X-3+2x-5-7x=30 | | 3(5g-11)=-1-17g | | h-13=184 | | 4x-6y=-7 | | 4c-14=30 | | (-5)(-2x)= | | 9p+21=30 | | (-4-3)x-8= | | 25h+1650=1325 | | 7x-5=3x-17 | | 13b-9=3b+4 | | 3(4x+1)=10x+9 | | 75x*3+15x= | | -12+8y=-16 |

Equations solver categories