[-8r-2]+[4r-3]=

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Solution for [-8r-2]+[4r-3]= equation:


Simplifying
[-8r + -2] + [4r + -3] = 0

Reorder the terms:
[-2 + -8r] + [4r + -3] = 0

Remove brackets around [-2 + -8r]
-2 + -8r + [4r + -3] = 0

Reorder the terms:
-2 + -8r + [-3 + 4r] = 0

Remove brackets around [-3 + 4r]
-2 + -8r + -3 + 4r = 0

Reorder the terms:
-2 + -3 + -8r + 4r = 0

Combine like terms: -2 + -3 = -5
-5 + -8r + 4r = 0

Combine like terms: -8r + 4r = -4r
-5 + -4r = 0

Solving
-5 + -4r = 0

Solving for variable 'r'.

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

Add '5' to each side of the equation.
-5 + 5 + -4r = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -4r = 0 + 5
-4r = 0 + 5

Combine like terms: 0 + 5 = 5
-4r = 5

Divide each side by '-4'.
r = -1.25

Simplifying
r = -1.25

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