(9r-5)-(-4r+9)=

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Solution for (9r-5)-(-4r+9)= equation:


Simplifying
(9r + -5) + -1(-4r + 9) = 0

Reorder the terms:
(-5 + 9r) + -1(-4r + 9) = 0

Remove parenthesis around (-5 + 9r)
-5 + 9r + -1(-4r + 9) = 0

Reorder the terms:
-5 + 9r + -1(9 + -4r) = 0
-5 + 9r + (9 * -1 + -4r * -1) = 0
-5 + 9r + (-9 + 4r) = 0

Reorder the terms:
-5 + -9 + 9r + 4r = 0

Combine like terms: -5 + -9 = -14
-14 + 9r + 4r = 0

Combine like terms: 9r + 4r = 13r
-14 + 13r = 0

Solving
-14 + 13r = 0

Solving for variable 'r'.

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

Add '14' to each side of the equation.
-14 + 14 + 13r = 0 + 14

Combine like terms: -14 + 14 = 0
0 + 13r = 0 + 14
13r = 0 + 14

Combine like terms: 0 + 14 = 14
13r = 14

Divide each side by '13'.
r = 1.076923077

Simplifying
r = 1.076923077

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