2r+4z=18

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Solution for 2r+4z=18 equation: 


Simplifying
2r + 4z = 18

Solving
2r + 4z = 18

Solving for variable 'r'.

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

Add '-4z' to each side of the equation.
2r + 4z + -4z = 18 + -4z

Combine like terms: 4z + -4z = 0
2r + 0 = 18 + -4z
2r = 18 + -4z

Divide each side by '2'.
r = 9 + -2z

Simplifying
r = 9 + -2z

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