-3x+8x-21=7x+7

Simple and best practice solution for -3x+8x-21=7x+7 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 -3x+8x-21=7x+7 equation:


Simplifying
-3x + 8x + -21 = 7x + 7

Reorder the terms:
-21 + -3x + 8x = 7x + 7

Combine like terms: -3x + 8x = 5x
-21 + 5x = 7x + 7

Reorder the terms:
-21 + 5x = 7 + 7x

Solving
-21 + 5x = 7 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-21 + 5x + -7x = 7 + 7x + -7x

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

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

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

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

Combine like terms: 7 + 21 = 28
-2x = 28

Divide each side by '-2'.
x = -14

Simplifying
x = -14

See similar equations:

| 3x-9y=-36 | | 7x+9y=80 | | -13+5=x | | 2x^2-2x-23=0 | | 4y-0.5x=0 | | 22=12x+4x-5x | | 2(-12+5)= | | 3+6c= | | f(3)=x^2+3x-5 | | 5(7+2x)=95 | | 11x=-3 | | -5(z+3)+3(3z-3)=3(z-5)+8 | | 4y=0.5x | | x/6-3-5 | | 5+7x=3x+45 | | x/4-8-11 | | x=3y-y^2 | | 9(8x+11)= | | x*17=15.3 | | f(x)=5x^2-20x+5 | | 2x^2-y^2=7 | | 16-x=8-4x | | 7x^4y^6+14x^5y^5= | | 9=2x+-11 | | f(-3)=2x^3+4x^2 | | 5-17=x+7 | | 14x+5=145 | | x/-2-8-2 | | 8x+16x-12=24x-12 | | X^2+3y^2=7 | | -4x^2+4x=-7 | | 37g=8.51 |

Equations solver categories