z+2(4-z)=4

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


Simplifying
z + 2(4 + -1z) = 4
z + (4 * 2 + -1z * 2) = 4
z + (8 + -2z) = 4

Reorder the terms:
8 + z + -2z = 4

Combine like terms: z + -2z = -1z
8 + -1z = 4

Solving
8 + -1z = 4

Solving for variable 'z'.

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

Add '-8' to each side of the equation.
8 + -8 + -1z = 4 + -8

Combine like terms: 8 + -8 = 0
0 + -1z = 4 + -8
-1z = 4 + -8

Combine like terms: 4 + -8 = -4
-1z = -4

Divide each side by '-1'.
z = 4

Simplifying
z = 4

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