3(2a+4)=42

Simple and best practice solution for 3(2a+4)=42 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(2a+4)=42 equation: 


Simplifying
3(2a + 4) = 42

Reorder the terms:
3(4 + 2a) = 42
(4 * 3 + 2a * 3) = 42
(12 + 6a) = 42

Solving
12 + 6a = 42

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + 6a = 42 + -12

Combine like terms: 12 + -12 = 0
0 + 6a = 42 + -12
6a = 42 + -12

Combine like terms: 42 + -12 = 30
6a = 30

Divide each side by '6'.
a = 5

Simplifying
a = 5

See similar equations:

| 7l+5=60 | | -8x^3+64=0 | | (7b-6)-2(3b+3)=-2 | | 3x^4-3x^2=0 | | 6x-4(4x+12)=148 | | 3.5(3.5+n)=73.5 | | -0.01158301158+0.111969112y=0 | | 777x=87y-9 | | 2x=89799858795*98784 | | 89788x=2569-9 | | 150x+18y=6 | | (2080*x)+(585*(1.5*x))=1000 | | (2080*x)+(1041.5*(1.5*x))=1000 | | 3n^2=-8n-2 | | 23.45j=469 | | (40*x)+(15*(1.5*x))=1000 | | 15x-7=7x+49 | | 54=16+y | | x+x+20=160 | | 8x+6x+4+9=7x+5+6x | | 5x-(6+x)= | | 23-2x^5=3 | | 3x=(23.66+X)*1.05 | | 6.88=0.198606012x-3.279462189 | | 3p+2p+4= | | y=0.0494ln(x)-0.1301 | | 12/2.44= | | y=8x+14y+50 | | 4x-3=6+3x | | 6+2x=x-4 | | 12+5x=3x+18 | | 8+3x=-x+12 |

Equations solver categories