10-2(a-1)=9+a

Simple and best practice solution for 10-2(a-1)=9+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 10-2(a-1)=9+a equation: 


Simplifying
10 + -2(a + -1) = 9 + a

Reorder the terms:
10 + -2(-1 + a) = 9 + a
10 + (-1 * -2 + a * -2) = 9 + a
10 + (2 + -2a) = 9 + a

Combine like terms: 10 + 2 = 12
12 + -2a = 9 + a

Solving
12 + -2a = 9 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
12 + -2a + -1a = 9 + a + -1a

Combine like terms: -2a + -1a = -3a
12 + -3a = 9 + a + -1a

Combine like terms: a + -1a = 0
12 + -3a = 9 + 0
12 + -3a = 9

Add '-12' to each side of the equation.
12 + -12 + -3a = 9 + -12

Combine like terms: 12 + -12 = 0
0 + -3a = 9 + -12
-3a = 9 + -12

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

Divide each side by '-3'.
a = 1

Simplifying
a = 1

See similar equations:

| (x^4)+(4x^2)-5=0 | | 13-9x=11-7x | | 3(x-3)+2=-7 | | 14p=20 | | -8-70=6x | | 3x-17=1-3x | | 3q-15=2q+10 | | x+21=5x+3 | | 8b-8=5b+20+8 | | x+3x+16= | | 5x-5=6x | | 5*x=17 | | s-(-4s-2)=13 | | 12x-24=18x+36 | | 2x+3x+62=180 | | z^2-12z+36=-16 | | 5x-24+45+10=14-2x+25 | | x+2x+13= | | -9x+3+2x-9y-8= | | 9x=88 | | 2x(-y+5)=2x-y+5 | | x^3+5x^2-24x-8=0 | | 6-4a=18 | | 3x-2=23 | | -3.4y=1.70 | | 7x+2(x-3)=4(x+1)-3 | | 3x+7+8x+6=90 | | 2x^2-5x+1=4 | | x^2+5x-8=0 | | b-9+66=30 | | -4(2+x)=8 | | 6-5=-29 |

Equations solver categories