7z-3+2z-4=20

Simple and best practice solution for 7z-3+2z-4=20 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-3+2z-4=20 equation:


Simplifying
7z + -3 + 2z + -4 = 20

Reorder the terms:
-3 + -4 + 7z + 2z = 20

Combine like terms: -3 + -4 = -7
-7 + 7z + 2z = 20

Combine like terms: 7z + 2z = 9z
-7 + 9z = 20

Solving
-7 + 9z = 20

Solving for variable 'z'.

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

Add '7' to each side of the equation.
-7 + 7 + 9z = 20 + 7

Combine like terms: -7 + 7 = 0
0 + 9z = 20 + 7
9z = 20 + 7

Combine like terms: 20 + 7 = 27
9z = 27

Divide each side by '9'.
z = 3

Simplifying
z = 3

See similar equations:

| -4=2+3a | | 4y^2+54=33y | | 6a+15-12a=-21 | | 4x+24=11x-53 | | X^2=11x+12 | | 4x+3y=14 | | 4(45)+3r=336 | | (a-9)(a-9)= | | 3y^2+2y=0 | | -3x+16=-17 | | 3(-2y+6)=4y-7 | | x=x^2-x | | (4h+3)(4h+3)= | | (x^3+y^4)(x^3-y^4)= | | 2w+2(2w+1)=50 | | 8x+3y=16 | | 3x^2-2x=-24 | | 12x-18= | | 5m+20= | | log(x-30)=3-logx | | 8x^3-2x^2-41x-10=0 | | 4y-36=2y+14 | | 1-3r=11 | | 5+2w=7 | | 4x-26=46 | | -5=5+2y | | 4=x+9 | | ln(x-6)+ln(x+1)=ln(x-15) | | (3s-2)(4s-4)= | | 4x^2-35x=49 | | -6=3r | | 3x+28=13x-52 |

Equations solver categories