42+7=z+19

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Solution for 42+7=z+19 equation:


Simplifying
42 + 7 = z + 19

Combine like terms: 42 + 7 = 49
49 = z + 19

Reorder the terms:
49 = 19 + z

Solving
49 = 19 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
49 + -1z = 19 + z + -1z

Combine like terms: z + -1z = 0
49 + -1z = 19 + 0
49 + -1z = 19

Add '-49' to each side of the equation.
49 + -49 + -1z = 19 + -49

Combine like terms: 49 + -49 = 0
0 + -1z = 19 + -49
-1z = 19 + -49

Combine like terms: 19 + -49 = -30
-1z = -30

Divide each side by '-1'.
z = 30

Simplifying
z = 30

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