9c-18c-15=21

Simple and best practice solution for 9c-18c-15=21 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 9c-18c-15=21 equation:


Simplifying
9c + -18c + -15 = 21

Reorder the terms:
-15 + 9c + -18c = 21

Combine like terms: 9c + -18c = -9c
-15 + -9c = 21

Solving
-15 + -9c = 21

Solving for variable 'c'.

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

Add '15' to each side of the equation.
-15 + 15 + -9c = 21 + 15

Combine like terms: -15 + 15 = 0
0 + -9c = 21 + 15
-9c = 21 + 15

Combine like terms: 21 + 15 = 36
-9c = 36

Divide each side by '-9'.
c = -4

Simplifying
c = -4

See similar equations:

| 4x^2-21x+22=-4x+7 | | 4/w^2.5=0.5 | | 6x+35=9x+11whatisx | | (9x+6)+(-3x-10)= | | x^2+2x-28=6x+4 | | 2(4r+16)=8(2r-8) | | 9-1/2=x | | x^2-3x+7=5 | | 4(2x-1)+2(5-3x)=0 | | x+2/8=x/4+1/2 | | 1/5(2x-92)=5x | | 9(2C+5)3C=-75 | | 3(x-5)=48-4x | | 2(x+2)+2(3x-1)=42 | | 51/3+141/2 | | 300a+150b=3000 | | 4a^2-9a=90 | | 3x+10=3(x+1)+7 | | 9.6=28.8 | | 4x(9x-10)= | | x^2+4x+17=-5x-1 | | 84-3x=15x+18 | | -45=3f+2f | | 3m^2-5=0 | | 28c^2+16c-44= | | 15=8(B-1)+9 | | 5/8/3/10 | | -2(9x-4y)=3 | | 6(x-6)+4=4(2x-3)-1 | | R^2=-4+4r | | 3x+7+5x+3=180 | | -2=k^7+6 |

Equations solver categories