x+3=-2x+21

Simple and best practice solution for x+3=-2x+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 x+3=-2x+21 equation:


Simplifying
x + 3 = -2x + 21

Reorder the terms:
3 + x = -2x + 21

Reorder the terms:
3 + x = 21 + -2x

Solving
3 + x = 21 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
3 + x + 2x = 21 + -2x + 2x

Combine like terms: x + 2x = 3x
3 + 3x = 21 + -2x + 2x

Combine like terms: -2x + 2x = 0
3 + 3x = 21 + 0
3 + 3x = 21

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

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

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

Divide each side by '3'.
x = 6

Simplifying
x = 6

See similar equations:

| -16t^2+64t+880= | | 2p+6=4p+-10 | | 12y^2-3=-16y | | 7/11 | | 3/11*7/9 | | 3/11*7-9 | | 100[0.07(n+6)]= | | 4(z-5)=-8(z+6) | | Y*y^7= | | 20x+9=5x+3(5x+3) | | 9-v=4v+8 | | 8x+8=2x | | 1.6/2=x/9 | | 5=(-4)w+0.3+5w+8.7 | | 0=176t-16t^2 | | 5y^2-6y+7=0 | | -12n+12=-11n-19 | | y=-15(-2) | | 4(x-4)=-6(x+3)+34 | | y=-15(2) | | -X-13=2 | | Z=zpt | | x^4+0x^3-9x^2+14=0 | | 8n-17n=-18-18 | | -17=3x-6 | | -x^2+4x=8 | | 49.99c+12=235.99 | | -48+12x+x^2=0 | | 3.6-9x=0 | | ln(x+4)+ln(x+1)=ln(3) | | 30X+30(1.5x)=750 | | 235.99-49.99=12c |

Equations solver categories