-9-4(7r+9)=

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Solution for -9-4(7r+9)= equation:


Simplifying
-9 + -4(7r + 9) = 0

Reorder the terms:
-9 + -4(9 + 7r) = 0
-9 + (9 * -4 + 7r * -4) = 0
-9 + (-36 + -28r) = 0

Combine like terms: -9 + -36 = -45
-45 + -28r = 0

Solving
-45 + -28r = 0

Solving for variable 'r'.

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

Add '45' to each side of the equation.
-45 + 45 + -28r = 0 + 45

Combine like terms: -45 + 45 = 0
0 + -28r = 0 + 45
-28r = 0 + 45

Combine like terms: 0 + 45 = 45
-28r = 45

Divide each side by '-28'.
r = -1.607142857

Simplifying
r = -1.607142857

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