10-4(z+7)=2(1-z)

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Solution for 10-4(z+7)=2(1-z) equation:


Simplifying
10 + -4(z + 7) = 2(1 + -1z)

Reorder the terms:
10 + -4(7 + z) = 2(1 + -1z)
10 + (7 * -4 + z * -4) = 2(1 + -1z)
10 + (-28 + -4z) = 2(1 + -1z)

Combine like terms: 10 + -28 = -18
-18 + -4z = 2(1 + -1z)
-18 + -4z = (1 * 2 + -1z * 2)
-18 + -4z = (2 + -2z)

Solving
-18 + -4z = 2 + -2z

Solving for variable 'z'.

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

Add '2z' to each side of the equation.
-18 + -4z + 2z = 2 + -2z + 2z

Combine like terms: -4z + 2z = -2z
-18 + -2z = 2 + -2z + 2z

Combine like terms: -2z + 2z = 0
-18 + -2z = 2 + 0
-18 + -2z = 2

Add '18' to each side of the equation.
-18 + 18 + -2z = 2 + 18

Combine like terms: -18 + 18 = 0
0 + -2z = 2 + 18
-2z = 2 + 18

Combine like terms: 2 + 18 = 20
-2z = 20

Divide each side by '-2'.
z = -10

Simplifying
z = -10

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