7a-3=2a+12

Simple and best practice solution for 7a-3=2a+12 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 7a-3=2a+12 equation:


Simplifying
7a + -3 = 2a + 12

Reorder the terms:
-3 + 7a = 2a + 12

Reorder the terms:
-3 + 7a = 12 + 2a

Solving
-3 + 7a = 12 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
-3 + 7a + -2a = 12 + 2a + -2a

Combine like terms: 7a + -2a = 5a
-3 + 5a = 12 + 2a + -2a

Combine like terms: 2a + -2a = 0
-3 + 5a = 12 + 0
-3 + 5a = 12

Add '3' to each side of the equation.
-3 + 3 + 5a = 12 + 3

Combine like terms: -3 + 3 = 0
0 + 5a = 12 + 3
5a = 12 + 3

Combine like terms: 12 + 3 = 15
5a = 15

Divide each side by '5'.
a = 3

Simplifying
a = 3

See similar equations:

| 3x^5+5x^3+15x-8=0 | | 0.5/0.666 | | -.5m-5=-4 | | 8r(r+2)= | | 72-5x=37 | | 5x-(10x-6)= | | -2+3x=.6+x | | (2x+10)=(5x-26) | | 9.7x=33.55 | | 2x-3y=5x+6 | | (x-5)+4x=180 | | 13st-3st+6st-9st= | | -4m-8=8 | | -.5(c+3)=-7 | | 5(1x+7)=50 | | 5*17^2/103 | | -1/2=x-2/3 | | v=14000t+20000 | | 8a^3-5a^2+4a^3= | | h(t)=-16t^2+784 | | 6(4x+8)=144 | | 5(17)^2/103= | | 4x+-3=x+9 | | -5+x=7-3x | | 29-[7x-5(2x-7)-2(9x-4)]+7(3x-8)= | | -7(-9+4x)=-21 | | -4+x=-6-46 | | h(-5)=9x^2+2 | | 73y-5.18=-51.9 | | 2-775/1000 | | 49x+35x= | | x^2-5x-1955=0 |

Equations solver categories