7x(x+3)=9x

Simple and best practice solution for 7x(x+3)=9x 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+3)=9x equation:


Simplifying
7x(x + 3) = 9x

Reorder the terms:
7x(3 + x) = 9x
(3 * 7x + x * 7x) = 9x
(21x + 7x2) = 9x

Solving
21x + 7x2 = 9x

Solving for variable 'x'.

Reorder the terms:
21x + -9x + 7x2 = 9x + -9x

Combine like terms: 21x + -9x = 12x
12x + 7x2 = 9x + -9x

Combine like terms: 9x + -9x = 0
12x + 7x2 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(12 + 7x) = 0

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(12 + 7x)' equal to zero and attempt to solve: Simplifying 12 + 7x = 0 Solving 12 + 7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + 7x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + 7x = 0 + -12 7x = 0 + -12 Combine like terms: 0 + -12 = -12 7x = -12 Divide each side by '7'. x = -1.714285714 Simplifying x = -1.714285714

Solution

x = {0, -1.714285714}

See similar equations:

| 8-7t=32+t | | 3p-156+9p^2=0 | | 8x+16=15x+9 | | (a)^a/b | | 19x=60x | | 4p-120+12p^2=0 | | F=8y-n/y | | 8y-8=8y | | y=5Inx^3 | | -16t^2+150t+60=0 | | 4w^2+-3w+-10=0 | | 5/2.5=5x | | 5x+12-7x=10+4x-8 | | 10x^3-x^2-9x=0 | | 3+n-10=-30 | | 0.3z-0.02z+0.2=1.18 | | 4g=4-7 | | 8(a+2)+2(2+3a)=0 | | p-p^2=.32 | | (6x-10)+(3x+11)=2x-14 | | 6-4x=8x | | 2cos(2t)-2sin(t)=0 | | 6q-5+4q+9= | | B+8+3b=74 | | 61x=177 | | 4x^2-32x-76=0 | | 5x^2-55x+90= | | h(t)=-16t^2+vot+33o | | (5x+7)(2x^2-17x+35)=0 | | y=33+9x | | 33(t)=16t^2+vot+33o | | 9z^4+4=14z^2 |

Equations solver categories