4(r+9)=-54

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Solution for 4(r+9)=-54 equation:


Simplifying
4(r + 9) = -54

Reorder the terms:
4(9 + r) = -54
(9 * 4 + r * 4) = -54
(36 + 4r) = -54

Solving
36 + 4r = -54

Solving for variable 'r'.

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

Add '-36' to each side of the equation.
36 + -36 + 4r = -54 + -36

Combine like terms: 36 + -36 = 0
0 + 4r = -54 + -36
4r = -54 + -36

Combine like terms: -54 + -36 = -90
4r = -90

Divide each side by '4'.
r = -22.5

Simplifying
r = -22.5

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