-9x-7y=21

Simple and best practice solution for -9x-7y=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 -9x-7y=21 equation: 


Simplifying
-9x + -7y = 21

Solving
-9x + -7y = 21

Solving for variable 'x'.

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

Add '7y' to each side of the equation.
-9x + -7y + 7y = 21 + 7y

Combine like terms: -7y + 7y = 0
-9x + 0 = 21 + 7y
-9x = 21 + 7y

Divide each side by '-9'.
x = -2.333333333 + -0.7777777778y

Simplifying
x = -2.333333333 + -0.7777777778y

See similar equations:

| T(n)=2(3) | | 2x+7=1-2x | | 1/3x-11=5 | | g(x)=-x^2+8x+3 | | 2x-y+3z=19 | | 6.9-4.1y=-3.5 | | x^3-2x^4+26x-63= | | 2y-61=10 | | 9x+14=250 | | -1=15-4n | | 0.075= | | y=x^7+3x^5-x^3-3x | | 73=73+u | | 5x+4(x-10)=61-(x-1) | | 6[-2-11(6x)]=-12 | | 15x/100 | | 7a(6m+8z)= | | 3p+10+p=180 | | 5n/45 | | 5k+2k=15 | | 68-w=47 | | -179+x=53+9x | | M+30=3 | | -3/2,-3/2,3/2,3/2 | | 2x^2+20x=6300 | | S-3=23 | | -3(4x-5)=-33 | | 0.03x+0.10(200-x)=0.43x | | 26=-4(8r+3) | | 1.22x=8.54 | | 4x-2y-z=-4 | | 2y+2-3(-4y-1)=2(y-2) |

Equations solver categories