7(k+3)=45-3(12-k)

Simple and best practice solution for 7(k+3)=45-3(12-k) 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 7(k+3)=45-3(12-k) equation:


Simplifying
7(k + 3) = 45 + -3(12 + -1k)

Reorder the terms:
7(3 + k) = 45 + -3(12 + -1k)
(3 * 7 + k * 7) = 45 + -3(12 + -1k)
(21 + 7k) = 45 + -3(12 + -1k)
21 + 7k = 45 + (12 * -3 + -1k * -3)
21 + 7k = 45 + (-36 + 3k)

Combine like terms: 45 + -36 = 9
21 + 7k = 9 + 3k

Solving
21 + 7k = 9 + 3k

Solving for variable 'k'.

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

Add '-3k' to each side of the equation.
21 + 7k + -3k = 9 + 3k + -3k

Combine like terms: 7k + -3k = 4k
21 + 4k = 9 + 3k + -3k

Combine like terms: 3k + -3k = 0
21 + 4k = 9 + 0
21 + 4k = 9

Add '-21' to each side of the equation.
21 + -21 + 4k = 9 + -21

Combine like terms: 21 + -21 = 0
0 + 4k = 9 + -21
4k = 9 + -21

Combine like terms: 9 + -21 = -12
4k = -12

Divide each side by '4'.
k = -3

Simplifying
k = -3

See similar equations:

| 6(4x-1)=3(8x-2) | | m+1=2m+7 | | 10x+10=8(x+3) | | (14)-(-8)= | | m+1=2m | | 176=-8n-8(n-6) | | 5x^2+2x+3=10-8x | | 14=6+t | | 3(2z-5)=2+13 | | 7x+10=2x+25 | | 12x-5=17x-1 | | 4(x-5)=2(x-2)+2x | | -36+8a=-7(-a+4) | | 6x=420 | | 11x-60= | | 3x+4-2x=7x+9 | | 4(n-9)+12=5*2 | | 4(x+3)=6(x-1) | | 4(n-9)+12=5(2) | | 7(x+4)=6(2x+3) | | y^2-4y+16= | | -3x+3=-4x+9 | | 6+-5x=-4 | | -4u-3u=6-7 | | 11=x-66 | | 5(4+2x)+-1(8x+-12)=68 | | (11x)-60= | | 6+2w-4w-12= | | 9=-6w | | 4-4=7f | | -7x+6+2x=14+x+9 | | -7x+4=-16-2x |

Equations solver categories