3+3x+6x=21

Simple and best practice solution for 3+3x+6x=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+3x+6x=21 equation: 


Simplifying
3 + 3x + 6x = 21

Combine like terms: 3x + 6x = 9x
3 + 9x = 21

Solving
3 + 9x = 21

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 9x = 21 + -3

Combine like terms: 3 + -3 = 0
0 + 9x = 21 + -3
9x = 21 + -3

Combine like terms: 21 + -3 = 18
9x = 18

Divide each side by '9'.
x = 2

Simplifying
x = 2

See similar equations:

| 2(2x+3)+7(7x-3)= | | -sec^2x/secx | | n+(-5.6)=6.3 | | -5(4X+3X)=6 | | 7=z+73 | | 18-18=-7/8x | | 40+x=20-2x | | 38=m-15 | | 2.5+5.25=3+3.25d | | 7x+1.5=-6x-5.2 | | X^2+17x+42x=0 | | 4u-16=16 | | n-17.9=36.8 | | 83=38+h | | 497+(m+13)+(m-9)+m=900 | | 1/3(6/5x-3)= | | 0.5x+0.5x= | | 40+x=20-3x | | -3v-45=7(v+5) | | -3=x^2-25 | | a+8.2=-4 | | 6(u-5)-8u=-24 | | 3w+3=-12 | | 497+(2m+4)=900 | | -7=4v+5 | | 18y+36-10y+6=0 | | -2(v+7)=4v-8 | | (5n^2-5)-(5-4n^2)= | | -2(3x+4y)= | | 240=74-y | | 18=-6w+2(w+5) | | 4y+40=8(y+3) |

Equations solver categories