3(x-4)+6(y+1)=21

Simple and best practice solution for 3(x-4)+6(y+1)=21 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(x-4)+6(y+1)=21 equation:


Simplifying
3(x + -4) + 6(y + 1) = 21

Reorder the terms:
3(-4 + x) + 6(y + 1) = 21
(-4 * 3 + x * 3) + 6(y + 1) = 21
(-12 + 3x) + 6(y + 1) = 21

Reorder the terms:
-12 + 3x + 6(1 + y) = 21
-12 + 3x + (1 * 6 + y * 6) = 21
-12 + 3x + (6 + 6y) = 21

Reorder the terms:
-12 + 6 + 3x + 6y = 21

Combine like terms: -12 + 6 = -6
-6 + 3x + 6y = 21

Solving
-6 + 3x + 6y = 21

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 3x + 6 + 6y = 21 + 6

Reorder the terms:
-6 + 6 + 3x + 6y = 21 + 6

Combine like terms: -6 + 6 = 0
0 + 3x + 6y = 21 + 6
3x + 6y = 21 + 6

Combine like terms: 21 + 6 = 27
3x + 6y = 27

Add '-6y' to each side of the equation.
3x + 6y + -6y = 27 + -6y

Combine like terms: 6y + -6y = 0
3x + 0 = 27 + -6y
3x = 27 + -6y

Divide each side by '3'.
x = 9 + -2y

Simplifying
x = 9 + -2y

See similar equations:

| 5h+6+8h-3h=36 | | y=x^2-2-12 | | 3x^2-21xy+2x-14y= | | 4-4y+3=-30 | | 3x^2+2x-6=2 | | 8x+81=6x+95 | | (1/12)/(6/12)= | | M-1=7m+15+2m | | y-12=8 | | 2a(x+3y)-b(x+3y)= | | 20(x+1)=200 | | 42=n^2-n | | 44+4x=11+x | | 7n-13=5+4n | | 0.25x+.05(18-x)=.10(5) | | 128=-16t^2+64t+64 | | 20-1a=-10 | | 6m-11=-13+5m | | 20x^4y^3-45x^2y^3-5x^2y^2= | | 1(x+3)+1(x+3)=-2 | | 6x^5y^5+48x^4y^5= | | 5(y-2)=4(y+3) | | -7-10k=7-8k | | 81x^2+5=14 | | -x+5x-4=0 | | 2x+10=43-x | | 6={x+2}/{3} | | -7-18k=7 | | -6y+6=-8+y | | 5xy^2-7ay+3xy-7y= | | 3(2-5x)=-6(2x+3) | | (3n+4)(8n-8)= |

Equations solver categories