21x-7=140

Simple and best practice solution for 21x-7=140 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 21x-7=140 equation: 


Simplifying
21x + -7 = 140

Reorder the terms:
-7 + 21x = 140

Solving
-7 + 21x = 140

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 21x = 140 + 7

Combine like terms: -7 + 7 = 0
0 + 21x = 140 + 7
21x = 140 + 7

Combine like terms: 140 + 7 = 147
21x = 147

Divide each side by '21'.
x = 7

Simplifying
x = 7

See similar equations:

| y=.5(-2)+5 | | 5x-3a= | | 3(3x-2)=8x+1 | | 7x+4(2x-1)-7=2(1-2x)+3 | | 3x-7y=63 | | 2w^2+12w-270=0 | | -6=2y | | 1/2(x+4)+1/3(x+9)-6=2(x-2) | | y=2(2)-8 | | (-6x^4)(-2x^3)= | | 25x^2-40x=36 | | 6-5x=-8 | | 7-2/3-2x=15 | | (Y-5)/2=6-y | | 3x^2-4xy+5y^2=93 | | x^2+20x+100=20 | | -7(n+4)+32=-4n-2 | | 4x=10y-4 | | 25=2x+1 | | y=2(0)-8 | | 1.5=-6c+0.4+7c+0.5 | | 53=8x-3 | | -66=22y | | 2(y+4)=3(y-1) | | -7h-8=-36 | | (x^2-25)/(x^2+5x-50) | | 1/4m^2-1/3m+1/9 | | (2/(x^3))=0 | | 4+4x=2(5x-x) | | 3x^2-22x+96=0 | | -5-11=4x+16-3x | | 4x=8k |

Equations solver categories