39-8r=-5(2r-7)

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Solution for 39-8r=-5(2r-7) equation:


Simplifying
39 + -8r = -5(2r + -7)

Reorder the terms:
39 + -8r = -5(-7 + 2r)
39 + -8r = (-7 * -5 + 2r * -5)
39 + -8r = (35 + -10r)

Solving
39 + -8r = 35 + -10r

Solving for variable 'r'.

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

Add '10r' to each side of the equation.
39 + -8r + 10r = 35 + -10r + 10r

Combine like terms: -8r + 10r = 2r
39 + 2r = 35 + -10r + 10r

Combine like terms: -10r + 10r = 0
39 + 2r = 35 + 0
39 + 2r = 35

Add '-39' to each side of the equation.
39 + -39 + 2r = 35 + -39

Combine like terms: 39 + -39 = 0
0 + 2r = 35 + -39
2r = 35 + -39

Combine like terms: 35 + -39 = -4
2r = -4

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

Simplifying
r = -2

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