-21a+28a-6=-10.2

Simple and best practice solution for -21a+28a-6=-10.2 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 -21a+28a-6=-10.2 equation:


Simplifying
-21a + 28a + -6 = -10.2

Reorder the terms:
-6 + -21a + 28a = -10.2

Combine like terms: -21a + 28a = 7a
-6 + 7a = -10.2

Solving
-6 + 7a = -10.2

Solving for variable 'a'.

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

Add '6' to each side of the equation.
-6 + 6 + 7a = -10.2 + 6

Combine like terms: -6 + 6 = 0
0 + 7a = -10.2 + 6
7a = -10.2 + 6

Combine like terms: -10.2 + 6 = -4.2
7a = -4.2

Divide each side by '7'.
a = -0.6

Simplifying
a = -0.6

See similar equations:

| 2x-11x=-35 | | 2x/10-3x/14=(2+x)/5-1/2 | | 67+45= | | (5x+35)=(10x-28) | | 98x^2-8=0 | | 280n-56=-352n | | 40v+176v=120 | | 12+8x=68 | | 18a=32 | | 24k+80=88k | | 1/4r-1/16+1/2r+1/2+r | | 5+3x=50 | | x/2-z=3 | | 2x^2-5+2=(x-3)(x-2)+3x | | 4w-2w(1-w)=-38 | | 21x-5=-32 | | 3v+3=9v+15 | | 0.254=(18+x)(18+94+x) | | 4x(8x+1)=144 | | 4x(8x+4)=144 | | -75=-7(x+6)+8(7x+2) | | 5x/6=0.5 | | -5(1-5n)-6(3+8n)=46 | | 35x-17= | | 4m-4(1-6m)=-34-2m | | 3(p+6)-5=-7+7p | | 66=-4(7a-1)-3a | | 4-6(-2+3n)=-34-8n | | X=99+387 | | 3y+9=(8y-2) | | -4(2v+5)=4-2v | | 7n+40=7n+8(1+4n) |

Equations solver categories