-4(6r+10)+9(9r+4)=

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Solution for -4(6r+10)+9(9r+4)= equation:


Simplifying
-4(6r + 10) + 9(9r + 4) = 0

Reorder the terms:
-4(10 + 6r) + 9(9r + 4) = 0
(10 * -4 + 6r * -4) + 9(9r + 4) = 0
(-40 + -24r) + 9(9r + 4) = 0

Reorder the terms:
-40 + -24r + 9(4 + 9r) = 0
-40 + -24r + (4 * 9 + 9r * 9) = 0
-40 + -24r + (36 + 81r) = 0

Reorder the terms:
-40 + 36 + -24r + 81r = 0

Combine like terms: -40 + 36 = -4
-4 + -24r + 81r = 0

Combine like terms: -24r + 81r = 57r
-4 + 57r = 0

Solving
-4 + 57r = 0

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + 57r = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 57r = 0 + 4
57r = 0 + 4

Combine like terms: 0 + 4 = 4
57r = 4

Divide each side by '57'.
r = 0.0701754386

Simplifying
r = 0.0701754386

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