3r+9=0

Simple and best practice solution for 3r+9=0 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 3r+9=0 equation: 


Simplifying
3r + 9 = 0

Reorder the terms:
9 + 3r = 0

Solving
9 + 3r = 0

Solving for variable 'r'.

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

Add '-9' to each side of the equation.
9 + -9 + 3r = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 3r = 0 + -9
3r = 0 + -9

Combine like terms: 0 + -9 = -9
3r = -9

Divide each side by '3'.
r = -3

Simplifying
r = -3

See similar equations:

| 50-8p=22+6p | | 2.65(a-6.5)=a | | 6X+15=X+60 | | 19.3(10-w)=10 | | (n)=5n-3 | | 3q+12r-12q-5r+10= | | 2.3b=82.5 | | -10=7y-12y^2 | | x^4-26x^2+25= | | 8y+8=7y-1 | | -12x^2-30x+18=0 | | -16=6(3h+8) | | -10=-7y-12y^2 | | b^2-225=0 | | y=6+x-x^2 | | 12w^2+23w=-5 | | 12y^2+8y=0 | | 8^2-100/5^2*5-3 | | 3t=30+2t | | 120*.230=x | | 120*.230= | | 5g-2=8 | | -2x-4=-4x | | 120*x=14 | | (10-N)x(14+8)=22 | | 4+0.1667n=3 | | 3y-5=-2y-15 | | 3aw+1=aw-7 | | 15x100/3-20+250/10 | | 2x^2-8/2x^2-6x-20 | | (7*10^5)/(2*10^-2*2.5*10^9) | | -6=14-0 |

Equations solver categories