x^2+4x=7x+28

Simple and best practice solution for x^2+4x=7x+28 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 x^2+4x=7x+28 equation:


Simplifying
x2 + 4x = 7x + 28

Reorder the terms:
4x + x2 = 7x + 28

Reorder the terms:
4x + x2 = 28 + 7x

Solving
4x + x2 = 28 + 7x

Solving for variable 'x'.

Reorder the terms:
-28 + 4x + -7x + x2 = 28 + 7x + -28 + -7x

Combine like terms: 4x + -7x = -3x
-28 + -3x + x2 = 28 + 7x + -28 + -7x

Reorder the terms:
-28 + -3x + x2 = 28 + -28 + 7x + -7x

Combine like terms: 28 + -28 = 0
-28 + -3x + x2 = 0 + 7x + -7x
-28 + -3x + x2 = 7x + -7x

Combine like terms: 7x + -7x = 0
-28 + -3x + x2 = 0

Factor a trinomial.
(-4 + -1x)(7 + -1x) = 0

Subproblem 1

Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 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 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4

Subproblem 2

Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 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 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Solution

x = {-4, 7}

See similar equations:

| 2(x)+2(2x+5)=38 | | x^2+y^2+z^2+2x+2y+2z-166=0 | | .5x-(-x+3)=x-5 | | 5x-28=68+9x | | 5x(12a-b-3c)= | | 8x+14=7x-15 | | 3x^2-78x+200=0 | | 5y-7+y+18=7y+20-4y | | bh=v | | 3x^2-6x=2x^2+6x-10 | | 125c^3+216=0 | | x+3-5=21 | | 7x*5z=37 | | 13x+390=7x | | 6j+30=36 | | 10m+10= | | (8y+13)(5y+6)=0 | | 22675=x^2+30x+400 | | 8x+60=-x-102 | | (-x^2)+3x+13=0 | | 3(x+4)-11=10 | | X^2-250x+10000=0 | | -55+4y+2=2(5y-5)-7 | | 4x+3x+4=81 | | 5x^2+43x+90=0 | | 15x^3+31x^2+10x=0 | | 60+1200+26.66p+30p=950+1360+23.33p | | 15-x=10-x | | -264=6(-8x+4) | | t=-20+6d | | -5v-44.2=-8.3v | | t-16=40 |

Equations solver categories