3=2(z-4)-1

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Solution for 3=2(z-4)-1 equation:


Simplifying
3 = 2(z + -4) + -1

Reorder the terms:
3 = 2(-4 + z) + -1
3 = (-4 * 2 + z * 2) + -1
3 = (-8 + 2z) + -1

Reorder the terms:
3 = -8 + -1 + 2z

Combine like terms: -8 + -1 = -9
3 = -9 + 2z

Solving
3 = -9 + 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.
3 + -2z = -9 + 2z + -2z

Combine like terms: 2z + -2z = 0
3 + -2z = -9 + 0
3 + -2z = -9

Add '-3' to each side of the equation.
3 + -3 + -2z = -9 + -3

Combine like terms: 3 + -3 = 0
0 + -2z = -9 + -3
-2z = -9 + -3

Combine like terms: -9 + -3 = -12
-2z = -12

Divide each side by '-2'.
z = 6

Simplifying
z = 6

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