-7n+21=1-2n

Simple and best practice solution for -7n+21=1-2n 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 -7n+21=1-2n equation:


Simplifying
-7n + 21 = 1 + -2n

Reorder the terms:
21 + -7n = 1 + -2n

Solving
21 + -7n = 1 + -2n

Solving for variable 'n'.

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

Add '2n' to each side of the equation.
21 + -7n + 2n = 1 + -2n + 2n

Combine like terms: -7n + 2n = -5n
21 + -5n = 1 + -2n + 2n

Combine like terms: -2n + 2n = 0
21 + -5n = 1 + 0
21 + -5n = 1

Add '-21' to each side of the equation.
21 + -21 + -5n = 1 + -21

Combine like terms: 21 + -21 = 0
0 + -5n = 1 + -21
-5n = 1 + -21

Combine like terms: 1 + -21 = -20
-5n = -20

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

Simplifying
n = 4

See similar equations:

| 4x+11y=4.6 | | X^2-12x=-72 | | 14-3(5t-12)=1-20+1 | | -4x+3(-2x+6)=8 | | 5x^2+2x+11= | | m+n+p=11 | | (y+3)+2y=(9y+6)-8 | | 5x+47=57 | | 5x(x-1)=2(1-x) | | -4(2w-1)=10-4w | | 18-4x=x+3 | | -5n-7=2n+28 | | 16-5(3t-4)=8-(2t+11) | | 4x=ln(8) | | 2sin^2x+sin(x)=1 | | 3w(2p+7)=15(p-4) | | (11x+4)+(8x+5)= | | b=1/2gr | | y=2(1.125)-1 | | 2x+3(2x-1)=6 | | y=x-6/2 | | (x+y)(x^2-y^2)-(x^2-y^2)= | | y=-3(2.25)+6 | | 2/15(x-2y-5z) | | 12x-7+x=3x-1 | | 3A-4B+7C=28 | | 2l=2w | | 2.25+3y=6 | | 4y=-8x-20 | | 2x^2-5y^2+4x-15y+20=0 | | x^2+3(x^2-1)=6 | | f(x)=14x^3+9x^2-2 |

Equations solver categories