7r+12=2r-13

Simple and best practice solution for 7r+12=2r-13 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 7r+12=2r-13 equation:


Simplifying
7r + 12 = 2r + -13

Reorder the terms:
12 + 7r = 2r + -13

Reorder the terms:
12 + 7r = -13 + 2r

Solving
12 + 7r = -13 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
12 + 7r + -2r = -13 + 2r + -2r

Combine like terms: 7r + -2r = 5r
12 + 5r = -13 + 2r + -2r

Combine like terms: 2r + -2r = 0
12 + 5r = -13 + 0
12 + 5r = -13

Add '-12' to each side of the equation.
12 + -12 + 5r = -13 + -12

Combine like terms: 12 + -12 = 0
0 + 5r = -13 + -12
5r = -13 + -12

Combine like terms: -13 + -12 = -25
5r = -25

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

Simplifying
r = -5

See similar equations:

| 2cos^2(15)-1= | | 4y-12x+24=0 | | 4r^2-8=0 | | 8y^2-37y+5= | | 6ab^5/6^-1a^-4b^3 | | (a+8)(a-3)=0 | | -3x+4=x-6 | | 3.14*2*x*x=75 | | y+dx=m | | 24.435=.16+2.32-16(110.25) | | -3+5=-10 | | ln(6y/5z) | | 24.435=16+2.32-16(110.25) | | -4m-9=8m+9 | | u=ncz | | -14/7y | | cos^2x+cosx-1=0 | | -14/17y | | 6x-1=15-73 | | 5x-4x+14=13-4 | | 5m-4=-10m+6 | | 5m-4=-10m-6 | | (3a^3b)(4a^4b^3)=0 | | x^2+16x^2-17=0 | | C-2.3=4.8 | | -51=6X+3 | | f(x)=-10x^4-21x^3+80x^2+147x-70 | | 7.07-n=4.85 | | -18x=-2y | | -4(x+5)+3=6(x+4)+6 | | 12c=c+44 | | 3x-4y=2 |

Equations solver categories