X*2+4x-21=0

Simple and best practice solution for X*2+4x-21=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 X*2+4x-21=0 equation:


Simplifying
X * 2 + 4x + -21 = 0

Reorder the terms for easier multiplication:
2X + 4x + -21 = 0

Reorder the terms:
-21 + 2X + 4x = 0

Solving
-21 + 2X + 4x = 0

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '21' to each side of the equation.
-21 + 2X + 21 + 4x = 0 + 21

Reorder the terms:
-21 + 21 + 2X + 4x = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 2X + 4x = 0 + 21
2X + 4x = 0 + 21

Combine like terms: 0 + 21 = 21
2X + 4x = 21

Add '-4x' to each side of the equation.
2X + 4x + -4x = 21 + -4x

Combine like terms: 4x + -4x = 0
2X + 0 = 21 + -4x
2X = 21 + -4x

Divide each side by '2'.
X = 10.5 + -2x

Simplifying
X = 10.5 + -2x

See similar equations:

| 3x-5-14=-5 | | 16-6=10-5j | | n-8=74 | | 2r-3.1=2 | | 2v+3=5v-9 | | n-16=73 | | (n-4)*(s+26)=3120 | | n+10=67 | | 7x*2-10x*2= | | -15=-0.2-k | | 6n-s=26 | | 33x-2=12x+2 | | 181+n=302 | | 122+n=378 | | 3y^2-7y-26=0 | | Ab+2c=d | | 88=4n | | Y+-10=4(x+-5) | | 69=3n | | y=2x^3+9x^2-24x | | 7(x+5)+6(x+5)=7x-7 | | n+9=72 | | x^2-2x+1+y^2-4y+4=9 | | F(x)=7x+15 | | n+11=75 | | n-70=12 | | 72=3n | | 22x-5=16x-5 | | 8x+3y=-14 | | 227+n=559 | | n+20=73 | | f(x)=125x+25 |

Equations solver categories