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:

| -7(8+8b)=112 | | 36+2w=-8+w | | m-17=8 | | H/-3=-12 | | 4x+2(x-3)=12 | | 9/8=g+1/2g | | 4g-5+10g=6+8g-2 | | 3cd^2-6c^2d=0 | | 4(5x+2)=148 | | 2(3-x)+1=-5(2x+3)+3 | | 12=8q | | 8+3(4-y)= | | 4x+24x-6=7(4x+7) | | 9n+4=5n+8 | | 4xy+8x=0 | | 1.1=m-0.9m | | 2(3x+11)=6x+5 | | 9d-5(3d-12)=30 | | -1x+1=6 | | 6l+2w=100 | | 2x^3-6x^4+4x^5=0 | | 2(2-x)+1=-5(2x+3)+3 | | 49x^(-5/2)+14x^(-3/2)+x^(-1/2) | | 5*10x=-15 | | x-25=-9x-5 | | 13x^2+26x-39=0 | | 16-12a-13=-9 | | 2x+4x-3=0 | | 5/6x+34=9 | | 25x+40=15x-80 | | 27=(t+3)9/2 | | 72x-36=6(12x-6) |

Equations solver categories