2r=6r-21

Simple and best practice solution for 2r=6r-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 2r=6r-21 equation: 


Simplifying
2r = 6r + -21

Reorder the terms:
2r = -21 + 6r

Solving
2r = -21 + 6r

Solving for variable 'r'.

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

Add '-6r' to each side of the equation.
2r + -6r = -21 + 6r + -6r

Combine like terms: 2r + -6r = -4r
-4r = -21 + 6r + -6r

Combine like terms: 6r + -6r = 0
-4r = -21 + 0
-4r = -21

Divide each side by '-4'.
r = 5.25

Simplifying
r = 5.25

See similar equations:

| 10m-26=23 | | x(3x-5)-8=0 | | 5x-x=x-16+x | | 9x-3=2x+15 | | 2x^2-17x=-21 | | 57-12=23 | | 5x+10=26-7x | | 8x+3(x+5)=7+11x-8 | | 3.17X^2-4.255X+1.156=0 | | 5x+3=4c | | 5(2x+1)-(3x+5)=2x | | 4r^2+6r=0 | | 4(-2x+4)-3x=-5x+2(-3x+8) | | -12(2-x)=6 | | 16x^2=72x+81 | | 5m+20=3m+30 | | 3t+67=180 | | 2y+1+3x-2=12 | | 7x+4=X-12 | | (6x-y)=(7x-2) | | 4(2x-3)=-7(-3-x) | | 2d-15=8 | | 1+(18-7n)=-9 | | 10(v+3)-2v=2(4v+1)-8 | | 4-(x+2)=3-x | | 7=14(4n+8)+4n | | (2x-1)/2-(3x+5)/3=2x | | 2x=500-y | | 8(x+3)+7=6(x+2) | | 3x^3+9x^2-5x-15=0 | | .5x+5=-10x+14 | | (4s+2)(6x^2-s+2)= |

Equations solver categories