3x+21=5x

Simple and best practice solution for 3x+21=5x 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+21=5x equation:


Simplifying
3x + 21 = 5x

Reorder the terms:
21 + 3x = 5x

Solving
21 + 3x = 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 + 3x + -5x = 5x + -5x

Combine like terms: 3x + -5x = -2x
21 + -2x = 5x + -5x

Combine like terms: 5x + -5x = 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:

| 15x-10-6x+24=0 | | z^2-(-3z^1/2)-1=0 | | 2(6m+8)=4(2m+8) | | z^2-(-3z^1/2)-1 | | 3/6×100= | | sin(37)=11/x | | 2(x-7)=x-4r | | x^2+6x+5x+30= | | 3x-1/2y=-7/2 | | z^2-3iz-1=0 | | 2y-8y+29=-5 | | (-3w/u^4)^4 | | 25-5x=20 | | 6(3x+6)+4x-1= | | 2x^8+4x^7=6x^6+4x^5 | | 3x^2+30x=6000 | | x^5-4x^4-4x^3= | | -13+4x=x+7 | | 2w-8(w+7)-3=4w+7 | | 12x-4x-30=20 | | 7wz=5z+8 | | x^2+(1+x^2)=900 | | x^2+2x-4=7x+2 | | 4+5x+2(3-4x)= | | 3x/4=2/7 | | x^2+15x-27=8x+3 | | P+39=-80 | | (y+3)(y-4)=8 | | 19=.0675x | | 3(4x-7)+15-13x= | | 19=6.75x | | (3x+1)(9x^2)= |

Equations solver categories