9(a+1)=3[a-(4-a)]

Simple and best practice solution for 9(a+1)=3[a-(4-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 9(a+1)=3[a-(4-a)] equation:


Simplifying
9(a + 1) = 3[a + -1(4 + -1a)]

Reorder the terms:
9(1 + a) = 3[a + -1(4 + -1a)]
(1 * 9 + a * 9) = 3[a + -1(4 + -1a)]
(9 + 9a) = 3[a + -1(4 + -1a)]
9 + 9a = 3[a + (4 * -1 + -1a * -1)]
9 + 9a = 3[a + (-4 + 1a)]

Reorder the terms:
9 + 9a = 3[-4 + a + 1a]

Combine like terms: a + 1a = 2a
9 + 9a = 3[-4 + 2a]
9 + 9a = [-4 * 3 + 2a * 3]
9 + 9a = [-12 + 6a]

Solving
9 + 9a = -12 + 6a

Solving for variable 'a'.

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

Add '-6a' to each side of the equation.
9 + 9a + -6a = -12 + 6a + -6a

Combine like terms: 9a + -6a = 3a
9 + 3a = -12 + 6a + -6a

Combine like terms: 6a + -6a = 0
9 + 3a = -12 + 0
9 + 3a = -12

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

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

Combine like terms: -12 + -9 = -21
3a = -21

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

Simplifying
a = -7

See similar equations:

| 183845832738493181839497*2737484837273853628449373949= | | x/10+1/5=1/20 | | 5x+1=13x+49 | | n/16+7=10 | | -15(9)+9y=39 | | 78(40)=72x | | -75/1/2 | | 3/2+2x=13/2 | | 9(a+1)=[a-(4-a)] | | 13w-3=7 | | 3x+24=80 | | 20y^2w^3*y^4u^8w^7= | | 258-5x=40x+18 | | 2(x+3)=x/2+3 | | 0.001x(x-5)=100 | | (4f^3g/3h^6)^3 | | -13+12x= | | x^2+px-p+3=0 | | 2x+4y=b | | 10.8=11-s/5 | | -2x+13=8x-2 | | -4x+4x=-5 | | -21=b/8-20 | | 7-7x=87-21x | | -7-3x=14x-10x | | 3x+7=-5x+9 | | 9x-x-5-1= | | 6-(-2)=b | | x-6=-x-1 | | 5x+4/2+3=9x/4 | | 5t-20/4-t | | 6(5+x)=66 |

Equations solver categories