9x^2+18x=7

Simple and best practice solution for 9x^2+18x=7 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 9x^2+18x=7 equation:


Simplifying
9x2 + 18x = 7

Reorder the terms:
18x + 9x2 = 7

Solving
18x + 9x2 = 7

Solving for variable 'x'.

Reorder the terms:
-7 + 18x + 9x2 = 7 + -7

Combine like terms: 7 + -7 = 0
-7 + 18x + 9x2 = 0

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

Subproblem 1

Set the factor '(-7 + -3x)' equal to zero and attempt to solve: Simplifying -7 + -3x = 0 Solving -7 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -3x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -3x = 0 + 7 -3x = 0 + 7 Combine like terms: 0 + 7 = 7 -3x = 7 Divide each side by '-3'. x = -2.333333333 Simplifying x = -2.333333333

Subproblem 2

Set the factor '(1 + -3x)' equal to zero and attempt to solve: Simplifying 1 + -3x = 0 Solving 1 + -3x = 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 + -3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3x = 0 + -1 -3x = 0 + -1 Combine like terms: 0 + -1 = -1 -3x = -1 Divide each side by '-3'. x = 0.3333333333 Simplifying x = 0.3333333333

Solution

x = {-2.333333333, 0.3333333333}

See similar equations:

| 126=21p | | -136=17k | | 9a-4+3(11-a)=23 | | 3y-6x+12=0 | | 75-9g=5(x-1) | | 5x^3+20x^2+5x+20= | | 180=x+4x+10 | | 7x-5(2-4x)+8=21x-10(x-2) | | x+12-6x=-19 | | 18+3x-7=26 | | 30=5x | | 10+15-3+2x=28 | | 3+9z+z^2=0 | | 12x=15x-60 | | .28x+8.5-.34x= | | 950=103x-205468 | | 700=-207622+104x | | I=104x-207622 | | (y^2-9)(5y^2-7y+4)= | | 15=m-3 | | x^2+6x-36=0 | | 2(5-3b)=4(6b-2) | | 2x^2+4x-336=0 | | x^4-15*x^2+4=0 | | y+(-7.5)=-12.2 | | 4x-12+7=2x-10 | | 0.2x^2-1.1x+0.5=0 | | x^2+2x=1.25 | | 4x+y=17 | | 2.7q-1.7-4.5q=2.8q-3.7 | | 6(x+2)=17 | | -11=4+5r |

Equations solver categories