21-3=2x+4

Simple and best practice solution for 21-3=2x+4 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 21-3=2x+4 equation:


Simplifying
21 + -3 = 2x + 4

Combine like terms: 21 + -3 = 18
18 = 2x + 4

Reorder the terms:
18 = 4 + 2x

Solving
18 = 4 + 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.
18 + -2x = 4 + 2x + -2x

Combine like terms: 2x + -2x = 0
18 + -2x = 4 + 0
18 + -2x = 4

Add '-18' to each side of the equation.
18 + -18 + -2x = 4 + -18

Combine like terms: 18 + -18 = 0
0 + -2x = 4 + -18
-2x = 4 + -18

Combine like terms: 4 + -18 = -14
-2x = -14

Divide each side by '-2'.
x = 7

Simplifying
x = 7

See similar equations:

| 2t^2-50= | | 19.88=0.75x+3.38 | | y^2-13y-30=0 | | 5x-7=5-z | | -5(3m-4)+18m= | | 2-11=y | | 6z+5+z-4= | | 12x-3=5x+11 | | y^2-13y=30 | | 2[7p-2(p-1)+3(4p+7)]=5-(p-1) | | 1/6(x-24)=5/6 | | 7+2=22 | | y=3.46(175)+3.45 | | -21=-x/8+4 | | ln(x+1)+ln(x+2)=ln(2) | | 3x(x-5)-3x^3=-30 | | 2(b-1)+3b=-7 | | 128^(5/7) | | 6+3(5x-1)= | | 7.8a+15=85.2 | | x^3+x^2-2x=o | | 12x-16y=12 | | 2d+3=7 | | y=1(20.61)+4.61 | | 2(x-4)+3(x+5)= | | 6-8=6 | | 5(3x+1)=2(13x-1) | | 123-a=118 | | y=7(13)+42 | | x/4-x=3 | | 8h-3=37 | | 420=29r-73 |

Equations solver categories