2(-1)-z=-4

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


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

Multiply 2 * -1
-2 + -1z = -4

Solving
-2 + -1z = -4

Solving for variable 'z'.

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

Add '2' to each side of the equation.
-2 + 2 + -1z = -4 + 2

Combine like terms: -2 + 2 = 0
0 + -1z = -4 + 2
-1z = -4 + 2

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

Divide each side by '-1'.
z = 2

Simplifying
z = 2

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