45=2z+30

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Solution for 45=2z+30 equation:


Simplifying
45 = 2z + 30

Reorder the terms:
45 = 30 + 2z

Solving
45 = 30 + 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.
45 + -2z = 30 + 2z + -2z

Combine like terms: 2z + -2z = 0
45 + -2z = 30 + 0
45 + -2z = 30

Add '-45' to each side of the equation.
45 + -45 + -2z = 30 + -45

Combine like terms: 45 + -45 = 0
0 + -2z = 30 + -45
-2z = 30 + -45

Combine like terms: 30 + -45 = -15
-2z = -15

Divide each side by '-2'.
z = 7.5

Simplifying
z = 7.5

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