2x+21=x+20

Simple and best practice solution for 2x+21=x+20 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+21=x+20 equation:


Simplifying
2x + 21 = x + 20

Reorder the terms:
21 + 2x = x + 20

Reorder the terms:
21 + 2x = 20 + x

Solving
21 + 2x = 20 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
21 + 2x + -1x = 20 + x + -1x

Combine like terms: 2x + -1x = 1x
21 + 1x = 20 + x + -1x

Combine like terms: x + -1x = 0
21 + 1x = 20 + 0
21 + 1x = 20

Add '-21' to each side of the equation.
21 + -21 + 1x = 20 + -21

Combine like terms: 21 + -21 = 0
0 + 1x = 20 + -21
1x = 20 + -21

Combine like terms: 20 + -21 = -1
1x = -1

Divide each side by '1'.
x = -1

Simplifying
x = -1

See similar equations:

| 8(t-3)+7t=5(3t+3)-10 | | 2y+3y=0 | | -5x-1=-x+19 | | 1x+3x=17500 | | 11x-13=4x+29 | | 2x^2+3y^2-2x+6y-7=0 | | 2t-8=-7+3t | | 209.04=0.85x50x0.325x0.7xDx(0.753-((0.7xD)/2) | | 4t+11=-8+t | | 2x=1505.94 | | 6(n-3)+5=2n+5 | | 2x+5=23 | | 35x+(20y)3=17500 | | 13+6x=43 | | 41/8x5 | | 8cos^3(x)-6cos(x)=1 | | 35x+(20y*3)=17500 | | 8d+2=4d+3 | | 35x+(20x*3)=17500 | | 35x+60y=17500 | | 35x+60y=120 | | 3x+(2x)2=12 | | x/1.12*0.06x=121,480 | | 8n-9=6+3n | | x/1.12*0.06x | | 9m-20=-76+m | | 2x(x-1)=10-2x | | Y=18x+12x^2-0.2x^3 | | -5x-22=-22 | | 31p=-124 | | 33=4(x-4)+9 | | 11-4m=15 |

Equations solver categories