21=1-2x+7x

Simple and best practice solution for 21=1-2x+7x 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 21=1-2x+7x equation:


Simplifying
21 = 1 + -2x + 7x

Combine like terms: -2x + 7x = 5x
21 = 1 + 5x

Solving
21 = 1 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
21 + -5x = 1 + 5x + -5x

Combine like terms: 5x + -5x = 0
21 + -5x = 1 + 0
21 + -5x = 1

Add '-21' to each side of the equation.
21 + -21 + -5x = 1 + -21

Combine like terms: 21 + -21 = 0
0 + -5x = 1 + -21
-5x = 1 + -21

Combine like terms: 1 + -21 = -20
-5x = -20

Divide each side by '-5'.
x = 4

Simplifying
x = 4

See similar equations:

| 25y^2+9= | | 0.5x-4=0-75x | | 5(2x-3)=3x | | 2b-0.9=3b | | 3(x-5)+x=18 | | 350000=59.95x-(25x) | | 3x-2=x-9 | | 8a-6-(a+2)= | | 5x-8x=-12 | | 1x-2=2x+3 | | 6b^2-17b+12= | | =2m^2+17m+22 | | 4x+2x=5x-8 | | 9+-2y+-9y^2+2y^3=0 | | 500000-150000=59.95x-(25x) | | 2x+5x+6=7 | | x=y^2+2y-1 | | 500000=59.95x-(25x+150000) | | 3(x-12)=9x | | 326x+448y=1 | | 6x-7=2+3x | | 9x+6-6x=5+2x+3 | | 1200x+900x=735 | | -3(6x-5)+2x-(-11x+8)= | | 50000=59.95x-(25x) | | 2y^3-9y^2=2y-9 | | 8(x+2)+6=8x+8 | | 6(3x+9)=-2(2x+6) | | 4Y+2=3y-8 | | (-7x)-21=(-2x)-6(-5x) | | 12x^2-56x+60= | | .11y+0.04(y+8000)=1670 |

Equations solver categories