(7x+7)(x-3)=0

Simple and best practice solution for (7x+7)(x-3)=0 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+7)(x-3)=0 equation:


Simplifying
(7x + 7)(x + -3) = 0

Reorder the terms:
(7 + 7x)(x + -3) = 0

Reorder the terms:
(7 + 7x)(-3 + x) = 0

Multiply (7 + 7x) * (-3 + x)
(7(-3 + x) + 7x * (-3 + x)) = 0
((-3 * 7 + x * 7) + 7x * (-3 + x)) = 0
((-21 + 7x) + 7x * (-3 + x)) = 0
(-21 + 7x + (-3 * 7x + x * 7x)) = 0
(-21 + 7x + (-21x + 7x2)) = 0

Combine like terms: 7x + -21x = -14x
(-21 + -14x + 7x2) = 0

Solving
-21 + -14x + 7x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '7'.
7(-3 + -2x + x2) = 0

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

Ignore the factor 7.

Subproblem 1

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

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 = {-1, 3}

See similar equations:

| -18=10z-10/5 | | 3y+2-y=29-y+9 | | 13=-16-x/4 | | -3/5=x-2/7 | | 6-8=x+14 | | 8.3=logI | | 6n+26-4n=54 | | 6x-72=11x | | 15=34-3x | | -7x^2-6=-5x | | 8(2x^2-3x+18)=135 | | -7w-3-4+2w= | | -7x^2-6=5x | | -x^3-7x^2-8x=0 | | 19(6c-1)-16=112c+19 | | 15+0.20m=25+0.10m | | -8+7(0)=-8 | | 5z-8-6z-9= | | (6x^-2)/(3x^2)= | | 2g-12=g+2 | | Y=-(7)+5 | | .66d=5 | | 15m+0.20=25m+0.10 | | -7+7(-3)=-8 | | 5(x+3)=5x-1+16 | | -6+7(-2)=-8 | | -4n-8=-4(n+2) | | V=1/3*3.14*16*11 | | 18÷9/16 | | 8(4n+8)=-20+4n | | -21=-4(7-2x)+7(1+2x) | | 30-8x=2x-60 |

Equations solver categories