3+8(1-7a)=-21

Simple and best practice solution for 3+8(1-7a)=-21 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 3+8(1-7a)=-21 equation: 


Simplifying
3 + 8(1 + -7a) = -21
3 + (1 * 8 + -7a * 8) = -21
3 + (8 + -56a) = -21

Combine like terms: 3 + 8 = 11
11 + -56a = -21

Solving
11 + -56a = -21

Solving for variable 'a'.

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

Add '-11' to each side of the equation.
11 + -11 + -56a = -21 + -11

Combine like terms: 11 + -11 = 0
0 + -56a = -21 + -11
-56a = -21 + -11

Combine like terms: -21 + -11 = -32
-56a = -32

Divide each side by '-56'.
a = 0.5714285714

Simplifying
a = 0.5714285714

See similar equations:

| w/3+2=5 | | 0=-3x^2-21x-18 | | 3.7A=-1.48 | | 1+3y-3y=1 | | X/2.7=-1.33333333333 | | (4x+10)+108+67+3x=360 | | -3.3B=3.96 | | 3x+150+60+90=360 | | c+2.5=4.5 | | 6n-4-2n=24 | | -9(v-7)=9v+9 | | 107-5x^2=4(1/2) | | -3x+9y=-3 | | 60+150+90=3x | | 4x+3-2x=3x-5 | | 107-5x^2=41/2 | | 0.6+1.2=3 | | -20=-8(7v+4) | | 90+150=90+3x | | 6x^2-10=3x-5 | | 20a+30b/2 | | X/2.5=-1.64 | | 20=a(a-1) | | -17+w=-10 | | X/4.4=0.352272727273 | | 2x+7(6+x)=15 | | a^2*8a=18 | | 5x-60=0 | | -48=-6-7x | | 20+20n=30+1.50n | | N/4.5=-1.08888888889 | | -2y+6y-1x-4=0 |

Equations solver categories