7y+3x-21=0

Simple and best practice solution for 7y+3x-21=0 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 7y+3x-21=0 equation:


Simplifying
7y + 3x + -21 = 0

Reorder the terms:
-21 + 3x + 7y = 0

Solving
-21 + 3x + 7y = 0

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 + 3x + 21 + 7y = 0 + 21

Reorder the terms:
-21 + 21 + 3x + 7y = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 3x + 7y = 0 + 21
3x + 7y = 0 + 21

Combine like terms: 0 + 21 = 21
3x + 7y = 21

Add '-7y' to each side of the equation.
3x + 7y + -7y = 21 + -7y

Combine like terms: 7y + -7y = 0
3x + 0 = 21 + -7y
3x = 21 + -7y

Divide each side by '3'.
x = 7 + -2.333333333y

Simplifying
x = 7 + -2.333333333y

See similar equations:

| x^2+x^2+4=74 | | 2x+4x=60 | | X-7.8=-3.1 | | -120=-15x-9x | | -0.4x=0.64 | | 12x-3=2x-43 | | 10z=5z-3+4z | | 8y-2y=30 | | y=3(-3)+1 | | 2x+11=-17 | | -490=70t-5t^2 | | x^2+14x-22=0 | | 3y+5x=2s+3y+4x | | y=2(4) | | y=2(2) | | y=2(0) | | 2x-7=2y+3 | | y=2(-2) | | X-7.3=-5.5 | | 13x-8=7x-32 | | y=2(-4) | | X+(x+36)-180=y | | x-2x=1 | | x+7y=5 | | 7-2(a+1)=8+a | | 8x-8+3(x-2)=-3x+2 | | -8x-8+3(x-2)=-3+2 | | 6z-12=14z-84 | | -3(t-5)+5t=4t-2 | | 0.9x-5.9=0.4 | | 7(n+8)=26-8n | | 7+s/5=-4 |

Equations solver categories