3.5x-21=x-1

Simple and best practice solution for 3.5x-21=x-1 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 3.5x-21=x-1 equation:


Simplifying
3.5x + -21 = x + -1

Reorder the terms:
-21 + 3.5x = x + -1

Reorder the terms:
-21 + 3.5x = -1 + x

Solving
-21 + 3.5x = -1 + 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 + 3.5x + -1x = -1 + x + -1x

Combine like terms: 3.5x + -1x = 2.5x
-21 + 2.5x = -1 + x + -1x

Combine like terms: x + -1x = 0
-21 + 2.5x = -1 + 0
-21 + 2.5x = -1

Add '21' to each side of the equation.
-21 + 21 + 2.5x = -1 + 21

Combine like terms: -21 + 21 = 0
0 + 2.5x = -1 + 21
2.5x = -1 + 21

Combine like terms: -1 + 21 = 20
2.5x = 20

Divide each side by '2.5'.
x = 8

Simplifying
x = 8

See similar equations:

| 0.5x-3=(1/7)x-(1/7) | | 0.5y-3=(1/7)x-(1/7) | | 0.5+0.75-0.25+0.35+0.25-0.75= | | 12+14+16+18= | | 3x/5-x/4 | | 4x+10=-46-10 | | 5e-3=2b-15 | | p/12=10/9 | | 49-3x+6x=15 | | 7x-2-x=2x-6 | | 6x+9=33-8x | | 7(4x+3)=105 | | 2a+20=130 | | 70-4x=7-9x | | 5a=270 | | 5x+19=15x-17 | | 7/9x3a/5 | | 6xa=180 | | 80-2x=43x+20 | | 5x^3-15x-20x=0 | | 7x+6=51 | | 4x+12=84-5xd | | 3+3x=12+x | | 3x+6=7y^2 | | 3x+39=13x-15 | | 3x+59= | | 2x+3(5+2)=5 | | 4x+13=57-10x | | 2m+4-3m=8(m-4) | | 4/n=28/42 | | 5a+6=24 | | (3a-12)/8=(30-2a)/2 |

Equations solver categories