9r+7=19r+12

Simple and best practice solution for 9r+7=19r+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 9r+7=19r+12 equation:


Simplifying
9r + 7 = 19r + 12

Reorder the terms:
7 + 9r = 19r + 12

Reorder the terms:
7 + 9r = 12 + 19r

Solving
7 + 9r = 12 + 19r

Solving for variable 'r'.

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

Add '-19r' to each side of the equation.
7 + 9r + -19r = 12 + 19r + -19r

Combine like terms: 9r + -19r = -10r
7 + -10r = 12 + 19r + -19r

Combine like terms: 19r + -19r = 0
7 + -10r = 12 + 0
7 + -10r = 12

Add '-7' to each side of the equation.
7 + -7 + -10r = 12 + -7

Combine like terms: 7 + -7 = 0
0 + -10r = 12 + -7
-10r = 12 + -7

Combine like terms: 12 + -7 = 5
-10r = 5

Divide each side by '-10'.
r = -0.5

Simplifying
r = -0.5

See similar equations:

| 3x+4y-3z=0 | | -3x+4y+3z=0 | | -7(4x+21)=5(2x+1) | | -9(z-8)=-9z-72 | | f(2)=4x^2+2 | | 5(7-3x)=-145 | | 3(-3x+8)=-75 | | 2(-6x+1)=-34 | | 7(5x+3)=-49 | | 6(3+5x)=228 | | 4(4+5x)=156 | | -8(x+0.1)=3.2 | | y-3=5(x-0) | | 7(6x-10)=392 | | -2(-6+2x)=-4 | | 33/2.95 | | -7(-6x+9)=-189 | | y=-2x^2-22x-56 | | 7(-6x+5)=-469 | | -2x^2-22x-56=y | | y-4=-8(x-0) | | 7(6x-6)=-546 | | log[b]81=-2 | | 4(7x+4)=44 | | 52x+x=120 | | 52x+x=4010 | | 5(-1-4x)=215 | | 4(5z-9)=10z-18 | | 65+130x=1235 | | -5(2x-8)=70 | | 14x^8/49x^7 | | -2(-7x+4)=6 |

Equations solver categories