-31-8a=-3(7a-7)

Simple and best practice solution for -31-8a=-3(7a-7) 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 -31-8a=-3(7a-7) equation:


Simplifying
-31 + -8a = -3(7a + -7)

Reorder the terms:
-31 + -8a = -3(-7 + 7a)
-31 + -8a = (-7 * -3 + 7a * -3)
-31 + -8a = (21 + -21a)

Solving
-31 + -8a = 21 + -21a

Solving for variable 'a'.

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

Add '21a' to each side of the equation.
-31 + -8a + 21a = 21 + -21a + 21a

Combine like terms: -8a + 21a = 13a
-31 + 13a = 21 + -21a + 21a

Combine like terms: -21a + 21a = 0
-31 + 13a = 21 + 0
-31 + 13a = 21

Add '31' to each side of the equation.
-31 + 31 + 13a = 21 + 31

Combine like terms: -31 + 31 = 0
0 + 13a = 21 + 31
13a = 21 + 31

Combine like terms: 21 + 31 = 52
13a = 52

Divide each side by '13'.
a = 4

Simplifying
a = 4

See similar equations:

| 5(3x+8)=-13+8 | | 9=2k+2v | | -24=-2-3 | | -x+x-1=0 | | 18x^2-12x-2=0 | | 14-(2a)=44 | | 3(b+8)+6b=8b+32 | | -37=3x+11-7 | | 45x^2+120x+71=0 | | 6y=3y^2-9 | | -6(b-4)=21-7b | | 8x+25=5x+10 | | 3*x-19=3+x | | x/3-15=-7 | | -6x+4x=2 | | 1inch=2.54 | | |3x+1|=13 | | 4(3x-4)+2=-2(6x+1) | | -3-4(p-5)=-7p+26 | | 4(8+3x)=8+4x | | x/5-16=-3 | | -9y+6x=45+24x | | x/10+32=11 | | -8(1+2k)=-35-7k | | 8-x=2x+1 | | -37=3x+11-(-7) | | (X+3)(X+4)=(X+1)(X+2) | | x/11+21=7 | | 3*x-17=5+x | | -24=-2n-3 | | 9x+2=5x-19 | | 3(3x+1)=13x+1-4x+2 |

Equations solver categories