3(x+4)-12=21

Simple and best practice solution for 3(x+4)-12=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(x+4)-12=21 equation: 



3(x+4)-12=21

We move all terms to the left:

3(x+4)-12-(21)=0

We add all the numbers together, and all the variables

3(x+4)-33=0

We multiply parentheses

3x+12-33=0

We add all the numbers together, and all the variables

3x-21=0

We move all terms containing x to the left, all other terms to the right

3x=21

x=21/3

x=7

See similar equations:

| 9h-6h+2h+3h=2 | | 5x-3=9x-10 | | -3x+40=19 | | 3.90x=50+85x | | 8x-7(x+6)=-44 | | 3.90x=50+85 | | 4y+6=2y+22 | | p/3+14=14 | | 4s+3=11 | | (2400/x)+2=(2400/x-5) | | 5(x+3(=25 | | 3x+8=(1/2)2x+24 | | 2400/x+2=2400/x-5 | | 6(b+12)=6 | | (3x-15)=(2x-5) | | -5÷2(x+6)+3÷2X=-8 | | 78=-9n-3(-56+12n) | | 3(y-4)+y/2=9 | | 5(4x+3)+7(x+7)=-17 | | 5y+4=3y+17 | | 4(m+2)=42 | | 34x–2=10 | | 15m+9=5+14m | | x+2x=789 | | 14+7(n-6)=28 | | (11–5)·x+13–8=29 | | 12+7·x–8+5=65 | | 2y+36=6+y | | (2D²-D+2)y=0 | | 3m-10=100-m/3 | | q-92/2=3 | | 3(b+8)=90 |

Equations solver categories