12a+30=5a+9

Simple and best practice solution for 12a+30=5a+9 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 12a+30=5a+9 equation:


Simplifying
12a + 30 = 5a + 9

Reorder the terms:
30 + 12a = 5a + 9

Reorder the terms:
30 + 12a = 9 + 5a

Solving
30 + 12a = 9 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
30 + 12a + -5a = 9 + 5a + -5a

Combine like terms: 12a + -5a = 7a
30 + 7a = 9 + 5a + -5a

Combine like terms: 5a + -5a = 0
30 + 7a = 9 + 0
30 + 7a = 9

Add '-30' to each side of the equation.
30 + -30 + 7a = 9 + -30

Combine like terms: 30 + -30 = 0
0 + 7a = 9 + -30
7a = 9 + -30

Combine like terms: 9 + -30 = -21
7a = -21

Divide each side by '7'.
a = -3

Simplifying
a = -3

See similar equations:

| 5x-8=-3x-24 | | 5y+10=3y+30 | | 9y-6=-24 | | 8x+12=6x+16 | | x^3-xb-4=0 | | b^3-3b-4=0 | | -6x+2y=6 | | 12-2x=34 | | 2x+8=6x-4 | | 3x+17=50 | | 2x+13=-57-8 | | 0.16+3n=0.29+n | | 4=2x+y | | 0.6-3x=0.3+2x | | (2x+4)2=(x-1)2 | | y=-5t^2+10t+15 | | -7-2x+6=-2x | | 2.7x-1.8=1.8x+2.7 | | 2.7x-1.8=1.8k+2.7 | | 2x+1=4x+2 | | n^3+3n^2+3n+2=0 | | 7x-14=-9 | | 2(x+5)+3(x-2)=64 | | 4x^3+15x^2+3x+28=0 | | 4x^2+15x+3=0 | | 2x*5y=50 | | -5/16/25/8= | | 5/8-(1/2-3/4)= | | 10(-3+-2t)+10+-2(6t+-13)=0 | | x(x^2-9)=0 | | 10(-3-2t)+10-2(6t-13)=3 | | -0.2x^2+0.1x=-0.06 |

Equations solver categories