-7s+21=-9s

Simple and best practice solution for -7s+21=-9s 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 -7s+21=-9s equation:


Simplifying
-7s + 21 = -9s

Reorder the terms:
21 + -7s = -9s

Solving
21 + -7s = -9s

Solving for variable 's'.

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

Add '9s' to each side of the equation.
21 + -7s + 9s = -9s + 9s

Combine like terms: -7s + 9s = 2s
21 + 2s = -9s + 9s

Combine like terms: -9s + 9s = 0
21 + 2s = 0

Add '-21' to each side of the equation.
21 + -21 + 2s = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 2s = 0 + -21
2s = 0 + -21

Combine like terms: 0 + -21 = -21
2s = -21

Divide each side by '2'.
s = -10.5

Simplifying
s = -10.5

See similar equations:

| 25+35x=65+20x | | 2x-3(5x-14)=16 | | 7-2x=9(x-1) | | 0=-4x^4+45x^2-500 | | 34x=4.5x | | (6x+1)(x-1)=35-35x | | 6-i/2-3i= | | 0=-4x^4+45x^2 | | x(4-x)-3lnx=0 | | 4/10=6/m | | 6x^2=19 | | -3(t+3)=9 | | -3+3x-6=-6 | | (-6-i)(3-3i)= | | (t/-2)-8=10 | | 6/10×40/100= | | 3/5x=1/14l5 | | 2/3g=4/5 | | -3-4(3-4)=-4 | | -12=24+4b | | 6/27=n/4 | | 0.7b=21 | | -3-4x=2x-13 | | -5-4(3-4x)=-4 | | -2m+8+8+m+1=0 | | 5(x-1)=3x+12 | | -4.5+h=1.5 | | -4(u+1)+6u=2(u-2)-8 | | 22x+14y=10.04 | | 9x-6=18 | | -3-3(1-6m)=-78 | | 9(x-4)=8x-33 |

Equations solver categories