21=7x+1-3x

Simple and best practice solution for 21=7x+1-3x 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=7x+1-3x equation:


Simplifying
21 = 7x + 1 + -3x

Reorder the terms:
21 = 1 + 7x + -3x

Combine like terms: 7x + -3x = 4x
21 = 1 + 4x

Solving
21 = 1 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
21 + -4x = 1 + 4x + -4x

Combine like terms: 4x + -4x = 0
21 + -4x = 1 + 0
21 + -4x = 1

Add '-21' to each side of the equation.
21 + -21 + -4x = 1 + -21

Combine like terms: 21 + -21 = 0
0 + -4x = 1 + -21
-4x = 1 + -21

Combine like terms: 1 + -21 = -20
-4x = -20

Divide each side by '-4'.
x = 5

Simplifying
x = 5

See similar equations:

| 100=-2x-2(-7x-14) | | 4m-2n*2=2m-72 | | 40x+7x=180 | | 5(-6)= | | 4b=16(b+12) | | 6=-12m | | -7z-14=4-8z | | 0.6(6)+x=15 | | 9x-13z=392 | | Y=4.2x+3.4 | | 31+x+15=180 | | 8z=-12+7z | | 3-6=30 | | 2x+1=41-6x | | 4(3x-5)6=7(x-2)+6x | | 11r-2r+5=-3r+5+8r^2 | | 11-x=-3 | | y=6x^4-3x^2 | | -1-2v=-9v-19+8v | | 100=2x-2(7x-14) | | 40x+32-24x=95 | | -4(p-6)+2p=5-3+6 | | 6[5-2x]=-4[3x+1] | | 4(3x-5)6=6x+2(3x-8) | | v+w=wsquared | | 9f-15g=0 | | 4(3x-5)6=12x-14 | | -3r-10=7+10-6r | | 3.2=9.5-0.9x | | 6*-3=2*-19 | | -7b+14+49-7=13+3b+5b | | 3*X^2-24*X+5=0 |

Equations solver categories