89-z=40

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Solution for 89-z=40 equation: 


Simplifying
89 + -1z = 40

Solving
89 + -1z = 40

Solving for variable 'z'.

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

Add '-89' to each side of the equation.
89 + -89 + -1z = 40 + -89

Combine like terms: 89 + -89 = 0
0 + -1z = 40 + -89
-1z = 40 + -89

Combine like terms: 40 + -89 = -49
-1z = -49

Divide each side by '-1'.
z = 49

Simplifying
z = 49

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