-1-3(1+3r)=-31

Simple and best practice solution for -1-3(1+3r)=-31 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 -1-3(1+3r)=-31 equation:


Simplifying
-1 + -3(1 + 3r) = -31
-1 + (1 * -3 + 3r * -3) = -31
-1 + (-3 + -9r) = -31

Combine like terms: -1 + -3 = -4
-4 + -9r = -31

Solving
-4 + -9r = -31

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + -9r = -31 + 4

Combine like terms: -4 + 4 = 0
0 + -9r = -31 + 4
-9r = -31 + 4

Combine like terms: -31 + 4 = -27
-9r = -27

Divide each side by '-9'.
r = 3

Simplifying
r = 3

See similar equations:

| X^2-3x+37=9x+5 | | 4X+3=2X+103 | | 81-3=n | | -5k+8(-2k-8)=-169 | | (-8x-5)(x+6)=(x+3)(-8x-8) | | 5a+4b+2a= | | -33=3(-3k-2) | | 10y+18=3(5-7)+5y | | Log[3](4x+3)=0 | | 5a+3b+2a= | | y+29=4y+48 | | 2a+5b+3a= | | -2m-4m+10= | | 5(k-2)=10(3k+5) | | Y=-55+4.5 | | log(3)(4x+3)=0 | | 6x-21=14x | | 3(2x+3)=75 | | 2x^2-3x+4+3x-x^2-6= | | 8w=-56 | | Y=4.5x-55 | | 16y=256 | | 2x^2+3-8x^2-5x+6-x= | | -4(x-6)+3(a-7)= | | 6(7x+3)+6x=306 | | -3(x+8)+2x(-4x+3)= | | 3x^2-5x-6-2x^2+4x-6= | | x^2-5x+4-3x^2-4+6x= | | 143=-11y | | An=4-3(n-3) | | (6.3x)y=6.3(xy) | | 7=5+x |

Equations solver categories