3x+5x+21=y

Simple and best practice solution for 3x+5x+21=y 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 3x+5x+21=y equation: 


Simplifying
3x + 5x + 21 = y

Reorder the terms:
21 + 3x + 5x = y

Combine like terms: 3x + 5x = 8x
21 + 8x = y

Solving
21 + 8x = y

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 8x = -21 + y

Combine like terms: 21 + -21 = 0
0 + 8x = -21 + y
8x = -21 + y

Divide each side by '8'.
x = -2.625 + 0.125y

Simplifying
x = -2.625 + 0.125y

See similar equations:

| Log(x)=.33 | | (1/6)*(6/7)^2*(2/3) | | (7-1)-8=7-(1-8) | | 92x-8=27x-4 | | 2x+5=8x+18 | | 9/24=3/x | | 8x+5=2x+2.23 | | 4w+7x+14y+5w+4x-7y= | | 24.9+30=1*60 | | 24.9+30=1+x | | .13(4x-20)=.05x-6 | | .13(-4x+20)=.05x-6 | | y=250+6x | | .13(-4x+2)=.05x-6 | | -2u/24 | | 2*5x/3 | | (0.1)4/0.1 | | 8+(4-2x)-(12-7x)= | | y=6x+250 | | 5-2(x-4)=4x+7 | | Y+3x-5Z=a | | 1/81=x^4 | | Y+3x-5z= | | 1.10*150= | | 2x^2-2x+y-1=0 | | 7/-8=-6 | | 2.5*n=30 | | 4x^6y^5+256y^5= | | 7/8-=-6 | | 30x^2-91x-30=0 | | x-2/9=7/8 | | 6n+6=-160 |

Equations solver categories