7r-5(3r-7)=51

Simple and best practice solution for 7r-5(3r-7)=51 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-5(3r-7)=51 equation:


Simplifying
7r + -5(3r + -7) = 51

Reorder the terms:
7r + -5(-7 + 3r) = 51
7r + (-7 * -5 + 3r * -5) = 51
7r + (35 + -15r) = 51

Reorder the terms:
35 + 7r + -15r = 51

Combine like terms: 7r + -15r = -8r
35 + -8r = 51

Solving
35 + -8r = 51

Solving for variable 'r'.

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

Add '-35' to each side of the equation.
35 + -35 + -8r = 51 + -35

Combine like terms: 35 + -35 = 0
0 + -8r = 51 + -35
-8r = 51 + -35

Combine like terms: 51 + -35 = 16
-8r = 16

Divide each side by '-8'.
r = -2

Simplifying
r = -2

See similar equations:

| u/5=17/8 | | .03(6x+3)=2x-5 | | 8(x+9)+3a(x+9)= | | 2x^4-15x^2+27=0 | | -9(t+4)+8(3t+1)=(t-4)+7 | | 4(x+4)=4+9x | | 3x-6=2+21 | | 6x+12(3x-4)=19+7x | | (3-x)[(3-x)(-x)-(4)]-2[2(3-x)-8]+4[4+4x]=0 | | -9(t+4)+8(3t+1)= | | x+9+a(x+9)= | | 88-2x=6-9x | | 1/7(x+5)-1/2(x+4)=-2 | | -35=-5y | | 10x+15=3(3x+2) | | 20=m-19 | | 18-30= | | -6.75=u/7+2 | | -8u+15.9=3.1 | | 5k+8=3k-1 | | (-x^2)+x+23=0 | | -14.9=-2.1+y/2 | | 7x/1x | | 8p-4p=24 | | (x^2)+x+23=0 | | 4d-12=2d | | 2x(2x+1)(x-5)=0 | | -(-2-3u+5)= | | e/3-7=e/2 | | (1/3x+10)2=24 | | 17+2+6.5x=1.5*6.5x | | 15k^2-33k+6=0 |

Equations solver categories