19=2+8(r-5)

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Solution for 19=2+8(r-5) equation:


Simplifying
19 = 2 + 8(r + -5)

Reorder the terms:
19 = 2 + 8(-5 + r)
19 = 2 + (-5 * 8 + r * 8)
19 = 2 + (-40 + 8r)

Combine like terms: 2 + -40 = -38
19 = -38 + 8r

Solving
19 = -38 + 8r

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
19 + -8r = -38 + 8r + -8r

Combine like terms: 8r + -8r = 0
19 + -8r = -38 + 0
19 + -8r = -38

Add '-19' to each side of the equation.
19 + -19 + -8r = -38 + -19

Combine like terms: 19 + -19 = 0
0 + -8r = -38 + -19
-8r = -38 + -19

Combine like terms: -38 + -19 = -57
-8r = -57

Divide each side by '-8'.
r = 7.125

Simplifying
r = 7.125

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