a-1=9+3a

Simple and best practice solution for a-1=9+3a 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 a-1=9+3a equation:


Simplifying
a + -1 = 9 + 3a

Reorder the terms:
-1 + a = 9 + 3a

Solving
-1 + a = 9 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-1 + a + -3a = 9 + 3a + -3a

Combine like terms: a + -3a = -2a
-1 + -2a = 9 + 3a + -3a

Combine like terms: 3a + -3a = 0
-1 + -2a = 9 + 0
-1 + -2a = 9

Add '1' to each side of the equation.
-1 + 1 + -2a = 9 + 1

Combine like terms: -1 + 1 = 0
0 + -2a = 9 + 1
-2a = 9 + 1

Combine like terms: 9 + 1 = 10
-2a = 10

Divide each side by '-2'.
a = -5

Simplifying
a = -5

See similar equations:

| m+0.9=-1.2 | | 4-5+2=1 | | -6k-2.1+0.5k-3.9k+1= | | 2ax-a+4x-2=0 | | 7x+20=9x-16 | | 2z-7=20 | | X(5x+20)=2x^2-6x+9 | | 8x-6=28 | | 7(x+6)=-7(x+6) | | 64=-2(5k-2) | | 7=4(x-3)-(x-7) | | 16x+20=14x-44 | | 2x=x-y+60 | | 3-2(y+4)=7 | | 3andb=9 | | 9(x-2)=7(x-4) | | 1.8r+9=2+9m-1 | | 14x-18=23x | | -3+4+t=16 | | -2-30=-8 | | 6x-(4x-6)=24 | | 3x+(2-5)=7 | | 95=-5(1-5k)-5k | | 5+4x*x-y-x=0 | | 3z+6+4z+9+8u= | | 3r-8=-22 | | 3(8x-2)=8(3x-8) | | -9(u+8)=-5u-32 | | 4-6=62 | | -3(2t-2)=-3 | | 6*29*X=175 | | -9x-21=35-21 |

Equations solver categories