7(z+4)-2(z-1)=2(z-4)+2(z-1)

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Solution for 7(z+4)-2(z-1)=2(z-4)+2(z-1) equation: 


Simplifying
7(z + 4) + -2(z + -1) = 2(z + -4) + 2(z + -1)

Reorder the terms:
7(4 + z) + -2(z + -1) = 2(z + -4) + 2(z + -1)
(4 * 7 + z * 7) + -2(z + -1) = 2(z + -4) + 2(z + -1)
(28 + 7z) + -2(z + -1) = 2(z + -4) + 2(z + -1)

Reorder the terms:
28 + 7z + -2(-1 + z) = 2(z + -4) + 2(z + -1)
28 + 7z + (-1 * -2 + z * -2) = 2(z + -4) + 2(z + -1)
28 + 7z + (2 + -2z) = 2(z + -4) + 2(z + -1)

Reorder the terms:
28 + 2 + 7z + -2z = 2(z + -4) + 2(z + -1)

Combine like terms: 28 + 2 = 30
30 + 7z + -2z = 2(z + -4) + 2(z + -1)

Combine like terms: 7z + -2z = 5z
30 + 5z = 2(z + -4) + 2(z + -1)

Reorder the terms:
30 + 5z = 2(-4 + z) + 2(z + -1)
30 + 5z = (-4 * 2 + z * 2) + 2(z + -1)
30 + 5z = (-8 + 2z) + 2(z + -1)

Reorder the terms:
30 + 5z = -8 + 2z + 2(-1 + z)
30 + 5z = -8 + 2z + (-1 * 2 + z * 2)
30 + 5z = -8 + 2z + (-2 + 2z)

Reorder the terms:
30 + 5z = -8 + -2 + 2z + 2z

Combine like terms: -8 + -2 = -10
30 + 5z = -10 + 2z + 2z

Combine like terms: 2z + 2z = 4z
30 + 5z = -10 + 4z

Solving
30 + 5z = -10 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
30 + 5z + -4z = -10 + 4z + -4z

Combine like terms: 5z + -4z = 1z
30 + 1z = -10 + 4z + -4z

Combine like terms: 4z + -4z = 0
30 + 1z = -10 + 0
30 + 1z = -10

Add '-30' to each side of the equation.
30 + -30 + 1z = -10 + -30

Combine like terms: 30 + -30 = 0
0 + 1z = -10 + -30
1z = -10 + -30

Combine like terms: -10 + -30 = -40
1z = -40

Divide each side by '1'.
z = -40

Simplifying
z = -40

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