(3n+5)(n-5)-3n(n+7)=6

Simple and best practice solution for (3n+5)(n-5)-3n(n+7)=6 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 (3n+5)(n-5)-3n(n+7)=6 equation:


Simplifying
(3n + 5)(n + -5) + -3n(n + 7) = 6

Reorder the terms:
(5 + 3n)(n + -5) + -3n(n + 7) = 6

Reorder the terms:
(5 + 3n)(-5 + n) + -3n(n + 7) = 6

Multiply (5 + 3n) * (-5 + n)
(5(-5 + n) + 3n * (-5 + n)) + -3n(n + 7) = 6
((-5 * 5 + n * 5) + 3n * (-5 + n)) + -3n(n + 7) = 6
((-25 + 5n) + 3n * (-5 + n)) + -3n(n + 7) = 6
(-25 + 5n + (-5 * 3n + n * 3n)) + -3n(n + 7) = 6
(-25 + 5n + (-15n + 3n2)) + -3n(n + 7) = 6

Combine like terms: 5n + -15n = -10n
(-25 + -10n + 3n2) + -3n(n + 7) = 6

Reorder the terms:
-25 + -10n + 3n2 + -3n(7 + n) = 6
-25 + -10n + 3n2 + (7 * -3n + n * -3n) = 6
-25 + -10n + 3n2 + (-21n + -3n2) = 6

Reorder the terms:
-25 + -10n + -21n + 3n2 + -3n2 = 6

Combine like terms: -10n + -21n = -31n
-25 + -31n + 3n2 + -3n2 = 6

Combine like terms: 3n2 + -3n2 = 0
-25 + -31n + 0 = 6
-25 + -31n = 6

Solving
-25 + -31n = 6

Solving for variable 'n'.

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

Add '25' to each side of the equation.
-25 + 25 + -31n = 6 + 25

Combine like terms: -25 + 25 = 0
0 + -31n = 6 + 25
-31n = 6 + 25

Combine like terms: 6 + 25 = 31
-31n = 31

Divide each side by '-31'.
n = -1

Simplifying
n = -1

See similar equations:

| 6x-3y^2=0 | | 6(6k-7)+3=5k-39 | | 9x-3/6=5/2 | | 6x63/20 | | 21x-11(5x)-11(12)=25(5x)+25(30) | | 6d-3=-15 | | 4/(x-3)-8/(2x+5)+3/(x-3) | | 93-4/2x3 | | 13/15+2/3 | | 3t^2+7t=12 | | 10-2(n)=-28 | | 0.05x+y=50000 | | 10/2(n)=-28 | | 441.24=210+0.82x | | 4c+4=35/2 | | y-(-4)=-7(x-(1)) | | -1/2p-7=-11 | | -(4x-3)-(2x-6)+4=-5(x-1)-(4x+4)+3 | | -52.4=-2x | | -102=-6a | | 25x^2-40xy+16y=0 | | 6/8=30/m | | x+2/3+x-1/4=9/2 | | y+x(x+2y)=88 | | 7.61=2(3.14)r | | 1/x^2+1/10+24 | | 4X+6X=10+8X | | 4x=-1/3y-1 | | 2w/5+w=14 | | x+9=-0.5 | | (100-10y)=90 | | 12d-3d+2=5 |

Equations solver categories