4(3z-1)-3(z+8)=7(z+1)

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Solution for 4(3z-1)-3(z+8)=7(z+1) equation:


Simplifying
4(3z + -1) + -3(z + 8) = 7(z + 1)

Reorder the terms:
4(-1 + 3z) + -3(z + 8) = 7(z + 1)
(-1 * 4 + 3z * 4) + -3(z + 8) = 7(z + 1)
(-4 + 12z) + -3(z + 8) = 7(z + 1)

Reorder the terms:
-4 + 12z + -3(8 + z) = 7(z + 1)
-4 + 12z + (8 * -3 + z * -3) = 7(z + 1)
-4 + 12z + (-24 + -3z) = 7(z + 1)

Reorder the terms:
-4 + -24 + 12z + -3z = 7(z + 1)

Combine like terms: -4 + -24 = -28
-28 + 12z + -3z = 7(z + 1)

Combine like terms: 12z + -3z = 9z
-28 + 9z = 7(z + 1)

Reorder the terms:
-28 + 9z = 7(1 + z)
-28 + 9z = (1 * 7 + z * 7)
-28 + 9z = (7 + 7z)

Solving
-28 + 9z = 7 + 7z

Solving for variable 'z'.

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

Add '-7z' to each side of the equation.
-28 + 9z + -7z = 7 + 7z + -7z

Combine like terms: 9z + -7z = 2z
-28 + 2z = 7 + 7z + -7z

Combine like terms: 7z + -7z = 0
-28 + 2z = 7 + 0
-28 + 2z = 7

Add '28' to each side of the equation.
-28 + 28 + 2z = 7 + 28

Combine like terms: -28 + 28 = 0
0 + 2z = 7 + 28
2z = 7 + 28

Combine like terms: 7 + 28 = 35
2z = 35

Divide each side by '2'.
z = 17.5

Simplifying
z = 17.5

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