7(z-4)=21

Simple and best practice solution for 7(z-4)=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 7(z-4)=21 equation: 


Simplifying
7(z + -4) = 21

Reorder the terms:
7(-4 + z) = 21
(-4 * 7 + z * 7) = 21
(-28 + 7z) = 21

Solving
-28 + 7z = 21

Solving for variable 'z'.

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

Add '28' to each side of the equation.
-28 + 28 + 7z = 21 + 28

Combine like terms: -28 + 28 = 0
0 + 7z = 21 + 28
7z = 21 + 28

Combine like terms: 21 + 28 = 49
7z = 49

Divide each side by '7'.
z = 7

Simplifying
z = 7

See similar equations:

| -(-3x+y)-2(5y-x)=0 | | x+2*x-9=0 | | 4n=n/13 | | 1244=50+6x | | y=750-16x | | f(x)=-16x^2+64x+8 | | 4x+1+57=90 | | 4z+5=90 | | (x+40)(x+30)=8x^2 | | 4z+5=180 | | .50x+.15(50)=47.5 | | f(10)=x/2-6 | | 3x-2+9x-26=20 | | 3x-2+9x-26= | | y=700-24(x) | | -18=9-8/2 | | 9n^2-11n+7=0 | | 26r+2377960=125r+2067959 | | .50x+1.5(50)=47.5 | | 6x-9=8x-3x | | p(p+4)=5 | | 7x^2-16-6=0 | | -sz+1=-4z | | 9+21=-3(8x-10) | | 7x=5(9x+2) | | 7x/12y-1/18xy^3 | | y=35.00+0.80(x) | | 12+20x=x | | 1/2x5/7 | | 2w=40-3w | | https://content.thinkthroughmath.com/uploads/image/image/302788/G58L808P1167S-caad222894c506b95f43f6b5667b1831.png | | 26r+2377960=3000000 |

Equations solver categories