2x+8=21

Simple and best practice solution for 2x+8=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 2x+8=21 equation: 


Simplifying
2x + 8 = 21

Reorder the terms:
8 + 2x = 21

Solving
8 + 2x = 21

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 2x = 21 + -8

Combine like terms: 8 + -8 = 0
0 + 2x = 21 + -8
2x = 21 + -8

Combine like terms: 21 + -8 = 13
2x = 13

Divide each side by '2'.
x = 6.5

Simplifying
x = 6.5

See similar equations:

| 2(5-4)-7=-19 | | 5*x= | | 14x+9=7x+46 | | 1/5(x-25)=4/5 | | 5(2x-3)+14=2(5x+4)-20 | | 5.5(x-3)=-0.5x+31.5 | | 8(t-4)+4t=6(2t+5)-12 | | -2/x+2+2x+1/x | | b^2-15b+54=0 | | 40n^2+3n+11=0 | | 14x/1-x=0 | | v/-8-6=8 | | 6/67=x/100 | | 48+12x=7x+13 | | (x+20.6)*0.604+(170-17-2.06-0.1*x)*0.471=150 | | 3n^2-18=0 | | (x+20.6)*0.604+(160-16-2.06-0.1*x)*0.471=150 | | -7(n-4)+3(n+1)= | | 2x-(3x-12)= | | 16x+9=8x+42 | | 27-2-4-(-k-3)=-16-(3k-4) | | (x+20.6)*0.604+(125-12.5-2.06-0.1*x)*0.471=150 | | 4.68x+1=21.9024+x | | g-16/4 | | 2x+12+6x+16= | | -x-29=13+2 | | 4x^2+3x=2 | | 15m-19m=16 | | 6/7x-5/7=8 | | (z-1)(z-7)=0 | | 3x-5(-2x-8)+4=2-(x-4) | | (x+20.6)*0.604+(65-6.5-0.1*x-2.06)*0.471=130 |

Equations solver categories