7(3-5r)=126

Simple and best practice solution for 7(3-5r)=126 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 7(3-5r)=126 equation: 


Simplifying
7(3 + -5r) = 126
(3 * 7 + -5r * 7) = 126
(21 + -35r) = 126

Solving
21 + -35r = 126

Solving for variable 'r'.

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

Add '-21' to each side of the equation.
21 + -21 + -35r = 126 + -21

Combine like terms: 21 + -21 = 0
0 + -35r = 126 + -21
-35r = 126 + -21

Combine like terms: 126 + -21 = 105
-35r = 105

Divide each side by '-35'.
r = -3

Simplifying
r = -3

See similar equations:

| 6(6+5m)=186 | | 4ln(x+7)=20 | | 7+2n/2=10 | | -3+11=-2z+3(z-2) | | -2A+8A-18+5A=-A+14-5A+2 | | 4x^2-16x+80=113 | | 2x+8=4x+11 | | 5x^2-11x-2=0 | | 16x-4y=32 | | 6(2a+7)=102 | | 10x^2-11x-2=0 | | 98b^2=2 | | (6r-3)(8r-3)= | | x-7=2x-3 | | 13+3x-9=10x-14-5x | | -9=108 | | 3x^2-3=45 | | x^2-24x+1=0 | | 100(x-3)=450-50 | | t/3-2=9 | | -6(8+6k)=-228 | | 7/5(40) | | x+7/5x=96 | | 6d/4=24 | | -153-12x=71+2x | | -5+7=5x-4(x-1) | | 9Y-1=y-5 | | D(3-7)-12=0 | | 6m/7-3=9 | | -82-3x=11x+170 | | 7m-10m=27 | | .5=.09 |

Equations solver categories