3+7x=-2x+21

Simple and best practice solution for 3+7x=-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 3+7x=-2x+21 equation:


Simplifying
3 + 7x = -2x + 21

Reorder the terms:
3 + 7x = 21 + -2x

Solving
3 + 7x = 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 + 7x + 2x = 21 + -2x + 2x

Combine like terms: 7x + 2x = 9x
3 + 9x = 21 + -2x + 2x

Combine like terms: -2x + 2x = 0
3 + 9x = 21 + 0
3 + 9x = 21

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:

| 3+5x-18x=83 | | 10x-5y=35 | | 6q-1=q+20 | | 2(x+1)=20 | | 7(-x+2)=4 | | 3(m-2)=6m-3(m+7) | | 2.1x=210 | | 4x-2(1-x)=28 | | 18-5X=4x | | lnx+ln(x-4)=ln(x+6) | | x^2+26x+40=0 | | -10(x+4)+42=-19-19 | | 5y=-2x+10 | | -78+2x=5x+20 | | 5y+2x=10 | | p^4+4p^6=0 | | 3(x-9)=2(x+6) | | 12x-2+y=180 | | 9x^6+8x^6=0 | | 5x-40=x+4 | | 2(x-1)-6=0 | | 7a+3+11=0 | | 2(6x+3)=5x+6+7x | | 3r^2+2=-62 | | 8y-14y=-26-34 | | 7x-8=4x+10 | | 3-y=19 | | 36b+18(9-b)=b+9 | | -15x-20=-14x+45 | | -2*-2*-2= | | 4t-5=5(t+3) | | 5(x+9)=7-(x-4) |

Equations solver categories