7(r+8.5)-5r+4=

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Solution for 7(r+8.5)-5r+4= equation:


Simplifying
7(r + 8.5) + -5r + 4 = 0

Reorder the terms:
7(8.5 + r) + -5r + 4 = 0
(8.5 * 7 + r * 7) + -5r + 4 = 0
(59.5 + 7r) + -5r + 4 = 0

Reorder the terms:
59.5 + 4 + 7r + -5r = 0

Combine like terms: 59.5 + 4 = 63.5
63.5 + 7r + -5r = 0

Combine like terms: 7r + -5r = 2r
63.5 + 2r = 0

Solving
63.5 + 2r = 0

Solving for variable 'r'.

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

Add '-63.5' to each side of the equation.
63.5 + -63.5 + 2r = 0 + -63.5

Combine like terms: 63.5 + -63.5 = 0.0
0.0 + 2r = 0 + -63.5
2r = 0 + -63.5

Combine like terms: 0 + -63.5 = -63.5
2r = -63.5

Divide each side by '2'.
r = -31.75

Simplifying
r = -31.75

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