5r-4r+(-4r)-18r-(-19r)=-8

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Solution for 5r-4r+(-4r)-18r-(-19r)=-8 equation: 


Simplifying
5r + -4r + (-4r) + -18r + -1(-19r) = -8

Remove parenthesis around (-19r)
5r + -4r + (-4r) + -18r + -1 * -19r = -8

Multiply -1 * -19
5r + -4r + (-4r) + -18r + 19r = -8

Combine like terms: 5r + -4r = 1r
1r + (-4r) + -18r + 19r = -8

Combine like terms: 1r + (-4r) = -3r
-3r + -18r + 19r = -8

Combine like terms: -3r + -18r = -21r
-21r + 19r = -8

Combine like terms: -21r + 19r = -2r
-2r = -8

Solving
-2r = -8

Solving for variable 'r'.

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

Divide each side by '-2'.
r = 4

Simplifying
r = 4

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