3[x-7]=x

Simple and best practice solution for 3[x-7]=x 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 3[x-7]=x equation:


Simplifying
3[x + -7] = x

Reorder the terms:
3[-7 + x] = x
[-7 * 3 + x * 3] = x
[-21 + 3x] = x

Solving
-21 + 3x = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-21 + 3x + -1x = x + -1x

Combine like terms: 3x + -1x = 2x
-21 + 2x = x + -1x

Combine like terms: x + -1x = 0
-21 + 2x = 0

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

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

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

Divide each side by '2'.
x = 10.5

Simplifying
x = 10.5

See similar equations:

| X^2+5x-1=x(x+3)+7 | | 4x^3+x^2y-4xy^2-y^3=0 | | 6v^2-6v-7=0 | | 2(4k+7)-3(6k-11)=137 | | 4/7(-21) | | -2(1)+y=-3 | | 3p+7m-4q-6p= | | 6w+8(3-w)-4=-17 | | -2(0)+y=-3 | | 3j^2+7j+4=0 | | x^2-10x=5x(x-2) | | -5b-3=b+9 | | y=(2/7)(5)+5 | | 10n+5(n-12)=0 | | 7x+21/x^2+3x | | 2(x^2-9x)=28 | | y=(2/7)(3)+5 | | (3p+8)=p+40 | | y=(2/7)(-2) | | y=(2/7)(1)+5 | | (15-6)2y+3(4-7)-2+3y-3(2-4y)=0 | | y=(2/7)(0)+5 | | 9x-30=12 | | 8q^2+6q-6=0 | | y=(2/7)-1+5 | | y=(2/7)(-1)+5 | | 2n+1/3n+1 | | (12x^2/6x^3)*(3/3) | | 63-6x=3x+16 | | 6x-4y=-18 | | 25x^2+10x+1/1-25x^2 | | 5(x+3)+10=-30 |

Equations solver categories