3=12-a

Simple and best practice solution for 3=12-a 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 3=12-a equation:


Simplifying
3 = 12 + -1a

Solving
3 = 12 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
3 + a = 12 + -1a + a

Combine like terms: -1a + a = 0
3 + a = 12 + 0
3 + a = 12

Add '-3' to each side of the equation.
3 + -3 + a = 12 + -3

Combine like terms: 3 + -3 = 0
0 + a = 12 + -3
a = 12 + -3

Combine like terms: 12 + -3 = 9
a = 9

Simplifying
a = 9

See similar equations:

| 3+2t=7 | | 24=c+29 | | 3x+45x*56bx= | | 5q-1=-1 | | 1364/93= | | 6x-2=(x-12) | | 15-4*x=9 | | 9x+16=5x | | 10+x=24 | | 3*x+8=2*15 | | 8x=11+x | | 2(x+3)-3x=8-2(2x-5) | | 650-3x=2894 | | 6x-23=13 | | 10p-5c+2p+8c=0 | | x-2x+3x-4x+5x-6x+7x-8x+9-10x= | | -6.8(4t+6)-1.7(2t-5)= | | 4x-16x^2=0 | | 15x^2-60x^3=0 | | 7(y-4)+8y=5(3y+4)-8 | | (7n+4)+14=7 | | x+32=50 | | (4x^2-4x-8)-(2x^2+3x-6)=0 | | 5xy+7x-3y-x+4xy= | | (3x^2+5x+7)+(2x^2-7x-8)=0 | | 2(3x-5)=3(4x+2)-7 | | 12-5x=4(x+1) | | (3x-5)(3x+5)=0 | | 12x-2=24 | | 2(a+b)-4(2a-3b)= | | (3x-1)(5x+2)=0 | | 4x-6-w-2=10w-3w |

Equations solver categories