3=r-12

Simple and best practice solution for 3=r-12 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=r-12 equation:


Simplifying
3 = r + -12

Reorder the terms:
3 = -12 + r

Solving
3 = -12 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
3 + -1r = -12 + r + -1r

Combine like terms: r + -1r = 0
3 + -1r = -12 + 0
3 + -1r = -12

Add '-3' to each side of the equation.
3 + -3 + -1r = -12 + -3

Combine like terms: 3 + -3 = 0
0 + -1r = -12 + -3
-1r = -12 + -3

Combine like terms: -12 + -3 = -15
-1r = -15

Divide each side by '-1'.
r = 15

Simplifying
r = 15

See similar equations:

| 8(2t-1)-(5t+6)=5(t+9)-5 | | 111110=0004444 | | 24x+1=3 | | w+2w=18 | | p+15=-1 | | 5p+1=1p+49 | | 0.3x-5.45=0.2x+2.6 | | 100=38.58+0.50x | | 9x+4=13x-6 | | (x*x)+3x+2= | | -1(y+3)=2 | | 10+z=3g | | p/4-(3p)/4=1-1/4 | | h(x)=x^2+6x-40 | | 9p-7q=-6 | | h(x)=x^2+23x-75 | | 7t+7=5t+11 | | 3(10)=9(3x-5) | | x=x-46 | | 4y+7+3y+10+y(-6)=256 | | -8u+6(6u)=22 | | 4a-7a=4 | | -36=-15-3x | | -7(2x+1)+3(5x+-4)=0 | | 2b+5i=12.9 | | 0.03x-2-1.2=0.24 | | 10+10+2x+15+3x-(-13)=-7 | | 7(2x+1)+3(5x-4)=0 | | 2z-6-5z=-24 | | 50=-6x+2(x+9) | | -51=-3x+2(-3x-3) | | ln(2*e)=x |

Equations solver categories