3(u+7)=-9u-15

Simple and best practice solution for 3(u+7)=-9u-15 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(u+7)=-9u-15 equation:


Simplifying
3(u + 7) = -9u + -15

Reorder the terms:
3(7 + u) = -9u + -15
(7 * 3 + u * 3) = -9u + -15
(21 + 3u) = -9u + -15

Reorder the terms:
21 + 3u = -15 + -9u

Solving
21 + 3u = -15 + -9u

Solving for variable 'u'.

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

Add '9u' to each side of the equation.
21 + 3u + 9u = -15 + -9u + 9u

Combine like terms: 3u + 9u = 12u
21 + 12u = -15 + -9u + 9u

Combine like terms: -9u + 9u = 0
21 + 12u = -15 + 0
21 + 12u = -15

Add '-21' to each side of the equation.
21 + -21 + 12u = -15 + -21

Combine like terms: 21 + -21 = 0
0 + 12u = -15 + -21
12u = -15 + -21

Combine like terms: -15 + -21 = -36
12u = -36

Divide each side by '12'.
u = -3

Simplifying
u = -3

See similar equations:

| (3+5)2*2-13= | | 3-(7+8)= | | (8x-5)+(-8x+5)= | | 5(3x-1)+x=-4(2x+4) | | 2w^3-10w^2-48w=0 | | 9x=189 | | (18(7))2+(16(7))2= | | 4-3y=2y+8 | | 5x^2+38x-63=0 | | 34.08/28.4 | | (9x-2)+(-9x+2)= | | (5y-8)+(-3y-8)= | | 9=-3k | | x^2+6x-10=2 | | -7x+14=7(x-2) | | M-5= | | 0.80x+0.60(80)=0.40(104) | | 7(w-8)-3w=-32 | | 2x^5+5x+6=0 | | (x+7)+(3x+2)= | | 5(v+2)-8v=-11 | | 7(y-6)+4y=-20 | | z/9-5=7 | | (3p-1)(5p^2-6p+2)= | | 17=5u+2 | | 5y-12=13y | | (x+3)+(7x+4)= | | (y-3x^2)dx+(x-1)dy=0 | | (2m^3n^4/3mn)^3 | | (x^2+3xy+y^2)dx-x^2dy=0 | | 3v+8=8+3v | | 125=y^(-3/2) |

Equations solver categories