104=-8(4+-3r)+-7r

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Solution for 104=-8(4+-3r)+-7r equation:


Simplifying
104 = -8(4 + -3r) + -7r
104 = (4 * -8 + -3r * -8) + -7r
104 = (-32 + 24r) + -7r

Combine like terms: 24r + -7r = 17r
104 = -32 + 17r

Solving
104 = -32 + 17r

Solving for variable 'r'.

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

Add '-17r' to each side of the equation.
104 + -17r = -32 + 17r + -17r

Combine like terms: 17r + -17r = 0
104 + -17r = -32 + 0
104 + -17r = -32

Add '-104' to each side of the equation.
104 + -104 + -17r = -32 + -104

Combine like terms: 104 + -104 = 0
0 + -17r = -32 + -104
-17r = -32 + -104

Combine like terms: -32 + -104 = -136
-17r = -136

Divide each side by '-17'.
r = 8

Simplifying
r = 8

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