-12+7r=r+6(2r+3)

Simple and best practice solution for -12+7r=r+6(2r+3) 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 -12+7r=r+6(2r+3) equation:


Simplifying
-12 + 7r = r + 6(2r + 3)

Reorder the terms:
-12 + 7r = r + 6(3 + 2r)
-12 + 7r = r + (3 * 6 + 2r * 6)
-12 + 7r = r + (18 + 12r)

Reorder the terms:
-12 + 7r = 18 + r + 12r

Combine like terms: r + 12r = 13r
-12 + 7r = 18 + 13r

Solving
-12 + 7r = 18 + 13r

Solving for variable 'r'.

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

Add '-13r' to each side of the equation.
-12 + 7r + -13r = 18 + 13r + -13r

Combine like terms: 7r + -13r = -6r
-12 + -6r = 18 + 13r + -13r

Combine like terms: 13r + -13r = 0
-12 + -6r = 18 + 0
-12 + -6r = 18

Add '12' to each side of the equation.
-12 + 12 + -6r = 18 + 12

Combine like terms: -12 + 12 = 0
0 + -6r = 18 + 12
-6r = 18 + 12

Combine like terms: 18 + 12 = 30
-6r = 30

Divide each side by '-6'.
r = -5

Simplifying
r = -5

See similar equations:

| -2+4y+2=x | | 2y(y+10)= | | 8/x=75/100 | | 2(2x-4x)+3=0 | | -2+-5y=0 | | -8(1-5b)+b=197 | | -5(3x-2)=12(-3x+2) | | 15x=13+6x | | -7x=56y | | 5r+3(r-7)=-85 | | 3k-2=16 | | x^3-55x^2-56x=0 | | 106-x=157 | | 3(-8x-4)=10-18x | | 40x^2-28x-48=0 | | 5y-7=6y-2 | | 83475897134728193074238104897586387126548782935x=743281907973289107490173298740 | | 783920758934725897342890x=x+809184390281 | | 2+y+y=1 | | s-5=25 | | m(m-6)= | | 4-6u=22 | | 5.6/0.08 | | 3(-7+x)=-60 | | 4w+15=47 | | 2x+5=4x+7 | | 2n=1/8 | | 6x^2-6x=7.75 | | 212=25-w | | -17=2y-7 | | -x^3-7x^2+8x+16=0 | | kx^2-3x-3=0 |

Equations solver categories