7z-9=-30

Simple and best practice solution for 7z-9=-30 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 7z-9=-30 equation: 


Simplifying
7z + -9 = -30

Reorder the terms:
-9 + 7z = -30

Solving
-9 + 7z = -30

Solving for variable 'z'.

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

Add '9' to each side of the equation.
-9 + 9 + 7z = -30 + 9

Combine like terms: -9 + 9 = 0
0 + 7z = -30 + 9
7z = -30 + 9

Combine like terms: -30 + 9 = -21
7z = -21

Divide each side by '7'.
z = -3

Simplifying
z = -3

See similar equations:

| X^2-13x+20=-6 | | 5(6p+(p+3m)+6m)= | | -2x+2=4(2+x) | | 5x^2=9 | | .7(3x+6)=1.1-(x+2) | | 7-2y=9-7y+5y | | 5x^2=23 | | 11(20y+16)= | | 0.72x-0.83=6.01-3.08x | | 7+2x= | | 2(x-2)=4x+6 | | 0.10(x+80)+0.20x=8+0.30x | | 7=-2 | | 7=2x | | 5x^2=110 | | 7=-2x | | 21=3(x-3) | | -2x+2y=-10 | | 13w-9-8w-10= | | 3(2x-4)-2=5x-(3-4x) | | -(w+3)=-8w+8 | | 5y-8y=39 | | 3*2x^2*x=(3*2)(x^2*x) | | -(x+3)=4x+12 | | 7(0+5)=7*0+7*5 | | (6x-8)+(7x+1)=4x+4 | | x+8y=28 | | 8y=-2.6666 | | 7(6+0+5)=7(6+5) | | 17x^2-8x-4=0 | | 7[6+5+(-6)]=7[6+(-6)+5] | | -4x-11(x+7)=-2(7x+4) |

Equations solver categories