x/2+x=21

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



x/2+x=21

We move all terms to the left:

x/2+x-(21)=0

We add all the numbers together, and all the variables

x+x/2-21=0

We multiply all the terms by the denominator


x*2+x-21*2=0

We add all the numbers together, and all the variables

x+x*2-42=0

Wy multiply elements

x+2x-42=0

We add all the numbers together, and all the variables

3x-42=0

We move all terms containing x to the left, all other terms to the right

3x=42

x=42/3

x=14

See similar equations:

| 1000​(7x−​10)=50​(348+​100x) | | f/3=-2=2 | | 9=m/4+6 | | 5-9x3=-13 | | x-41=91 | | -8=2x-9x^2 | | -297+x=78 | | 3(2x+9)=-33+30 | | X+22=54;x | | 3x+5=-25+x | | 55÷7=55×x | | 9+36=-5(6x-9) | | –6c–20=–8 | | 5n+91=2n | | 3(q+6)=6 | | 0=4(a-5) | | 8x−9=4x+6 | | 10x+8=10x+2 | | 10x+8=10x+@ | | 8=4+3y | | -3-4(8+4x)=-83 | | -6(-7+4x)=138 | | -6(n-6)+1=85 | | 5.8x+x=206 | | -7(-4k-6)=98 | | 8(2v+2)=144 | | 6x+2=2x+74 | | 15−a=23−2 | | 15−a=23−2� | | 4+2(5+6x)=98 | | 3u+13=-14 | | 5=4(x+1)=15 |

Equations solver categories