2x-7=4x-21

Simple and best practice solution for 2x-7=4x-21 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 2x-7=4x-21 equation:


Simplifying
2x + -7 = 4x + -21

Reorder the terms:
-7 + 2x = 4x + -21

Reorder the terms:
-7 + 2x = -21 + 4x

Solving
-7 + 2x = -21 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-7 + 2x + -4x = -21 + 4x + -4x

Combine like terms: 2x + -4x = -2x
-7 + -2x = -21 + 4x + -4x

Combine like terms: 4x + -4x = 0
-7 + -2x = -21 + 0
-7 + -2x = -21

Add '7' to each side of the equation.
-7 + 7 + -2x = -21 + 7

Combine like terms: -7 + 7 = 0
0 + -2x = -21 + 7
-2x = -21 + 7

Combine like terms: -21 + 7 = -14
-2x = -14

Divide each side by '-2'.
x = 7

Simplifying
x = 7

See similar equations:

| 4x(7+x)=0 | | 5x+34=8x+7 | | (-10)+4= | | z(z+3)=0 | | 25x^2+50x+2=0 | | 7(6m+7)(m+1)=0 | | 6x+7=2x+31 | | 12x^2-19x+5=0 | | x(x-5)=0 | | 0.45x+.05(10-x)=.10(13) | | 14x^2+73x+45=0 | | 2x^2-x-153=0 | | 6v^2-30v+24=0 | | 15x^2-23x+4=0 | | 3x^2-2x-3=0 | | 18(m+.444)-16=118 | | 1.5w=6 | | .6666666667y+6=y | | -13x^2+65=0 | | 3(5z-1)-2(z+8)=6(z+1) | | 8x^2+72=0 | | 14x^2+17x-45=0 | | 2y-3x+5=0 | | 20x+80=140+10x | | 5x^2-10x=-3 | | 3x-1-4x=-2x+x-10 | | 0.04166666666s^2=150 | | n^2-3n-420=0 | | 2x-3-6x+8=-7 | | m^2-8m=14 | | -3(2x-y)= | | -3(3n+4)=9 |

Equations solver categories