-4r-6(r-5)=80

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Solution for -4r-6(r-5)=80 equation:


Simplifying
-4r + -6(r + -5) = 80

Reorder the terms:
-4r + -6(-5 + r) = 80
-4r + (-5 * -6 + r * -6) = 80
-4r + (30 + -6r) = 80

Reorder the terms:
30 + -4r + -6r = 80

Combine like terms: -4r + -6r = -10r
30 + -10r = 80

Solving
30 + -10r = 80

Solving for variable 'r'.

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

Add '-30' to each side of the equation.
30 + -30 + -10r = 80 + -30

Combine like terms: 30 + -30 = 0
0 + -10r = 80 + -30
-10r = 80 + -30

Combine like terms: 80 + -30 = 50
-10r = 50

Divide each side by '-10'.
r = -5

Simplifying
r = -5

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