3(9+x)=42

Simple and best practice solution for 3(9+x)=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(9+x)=42 equation:



3(9+x)=42
We move all terms to the left:
3(9+x)-(42)=0
We add all the numbers together, and all the variables
3(x+9)-42=0
We multiply parentheses
3x+27-42=0
We add all the numbers together, and all the variables
3x-15=0
We move all terms containing x to the left, all other terms to the right
3x=15
x=15/3
x=5

See similar equations:

| 5x+1/3=2x+1/2 | | 6-z=-13 | | 3y–-4=7 | | 5+y=5y | | -4=2y–6 | | 2x+79-79=180-79 | | 8a-3(a+5)=13 | | 105(5+x)=1260 | | 105(5+x)=1155 | | 3(14+x)=72 | | 5b-3×48=b | | 6n-22=2 | | 5x−x/3=13 | | 9q-4=20 | | 3x+1200=x-460 | | 110=1/2*b*5 | | -x+16=x+6 | | 22=3x+16 | | 20(x+18)=1260 | | 7x+(5x-1)=-5+12x | | 3+6e=8 | | 20(x+18)=1060 | | 8(5x+1)+7(2x+3)=13(3x+5)+2(2x+4) | | 6/9=x/28 | | x/10=19/25 | | 7y+2=20 | | 5x-6=-0.2x-6 | | 20(x+10)=460 | | (9x+3)/2=3x-1 | | 20(x+10)=500 | | 11b-29-7=8 | | 9=6p-3 |

Equations solver categories