-7(2r-1)+3(8-r)=

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Solution for -7(2r-1)+3(8-r)= equation:


Simplifying
-7(2r + -1) + 3(8 + -1r) = 0

Reorder the terms:
-7(-1 + 2r) + 3(8 + -1r) = 0
(-1 * -7 + 2r * -7) + 3(8 + -1r) = 0
(7 + -14r) + 3(8 + -1r) = 0
7 + -14r + (8 * 3 + -1r * 3) = 0
7 + -14r + (24 + -3r) = 0

Reorder the terms:
7 + 24 + -14r + -3r = 0

Combine like terms: 7 + 24 = 31
31 + -14r + -3r = 0

Combine like terms: -14r + -3r = -17r
31 + -17r = 0

Solving
31 + -17r = 0

Solving for variable 'r'.

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

Add '-31' to each side of the equation.
31 + -31 + -17r = 0 + -31

Combine like terms: 31 + -31 = 0
0 + -17r = 0 + -31
-17r = 0 + -31

Combine like terms: 0 + -31 = -31
-17r = -31

Divide each side by '-17'.
r = 1.823529412

Simplifying
r = 1.823529412

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