2(-3)-3(-9)=21

Simple and best practice solution for 2(-3)-3(-9)=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 2(-3)-3(-9)=21 equation: 


Simplifying
2(-3) + -3(-9) = 21

Multiply 2 * -3
-6 + -3(-9) = 21

Multiply -3 * -9
-6 + 27 = 21

Combine like terms: -6 + 27 = 21
21 = 21

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

See similar equations:

| 30=1/4x=1/2x | | -12-5y=40 | | 2x+12-7x= | | 14x-7=11x+8 | | -1/7y-5/3=-3/2 | | 54x+62=190 | | 2(-3)-3(9)=21 | | 7x-6+6x+1=180 | | k-43=121 | | 3y+85=62 | | (3v-7)(5v^2-v-4)=0 | | -5/2=-3/5w-4/3 | | x^2+3y-39=0 | | 19m=209 | | 0=-16t^2+68t+60 | | 4x-72y=346 | | 5(1)+y=-25 | | (v^2-3v+4)(5v-2)=0 | | 5/2-1=-31 | | 32=4(u+3)-6u | | y+168=612 | | (x^2)-4=1-4x | | 2v-8=10 | | 5(u-4)-8u=-38 | | log((x^2)-4)=log(1-4x) | | 4y=10x-24 | | 3/5x-5/4=-2/3 | | (4u^2-2u-1)(u^2+7u+5)=0 | | 70=10w | | 8x-12=4(1/2x)-6 | | -2/5=-4/3x-1/2 | | 11x+19=11x+19*3+107 |

Equations solver categories