9(r-4)+18=0

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Solution for 9(r-4)+18=0 equation:


Simplifying
9(r + -4) + 18 = 0

Reorder the terms:
9(-4 + r) + 18 = 0
(-4 * 9 + r * 9) + 18 = 0
(-36 + 9r) + 18 = 0

Reorder the terms:
-36 + 18 + 9r = 0

Combine like terms: -36 + 18 = -18
-18 + 9r = 0

Solving
-18 + 9r = 0

Solving for variable 'r'.

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

Add '18' to each side of the equation.
-18 + 18 + 9r = 0 + 18

Combine like terms: -18 + 18 = 0
0 + 9r = 0 + 18
9r = 0 + 18

Combine like terms: 0 + 18 = 18
9r = 18

Divide each side by '9'.
r = 2

Simplifying
r = 2

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