8(r-8)=5(r-10)

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Solution for 8(r-8)=5(r-10) equation:


Simplifying
8(r + -8) = 5(r + -10)

Reorder the terms:
8(-8 + r) = 5(r + -10)
(-8 * 8 + r * 8) = 5(r + -10)
(-64 + 8r) = 5(r + -10)

Reorder the terms:
-64 + 8r = 5(-10 + r)
-64 + 8r = (-10 * 5 + r * 5)
-64 + 8r = (-50 + 5r)

Solving
-64 + 8r = -50 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
-64 + 8r + -5r = -50 + 5r + -5r

Combine like terms: 8r + -5r = 3r
-64 + 3r = -50 + 5r + -5r

Combine like terms: 5r + -5r = 0
-64 + 3r = -50 + 0
-64 + 3r = -50

Add '64' to each side of the equation.
-64 + 64 + 3r = -50 + 64

Combine like terms: -64 + 64 = 0
0 + 3r = -50 + 64
3r = -50 + 64

Combine like terms: -50 + 64 = 14
3r = 14

Divide each side by '3'.
r = 4.666666667

Simplifying
r = 4.666666667

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