(-1)-r=(-4)

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Solution for (-1)-r=(-4) equation: 


Simplifying
(-1) + -1r = (-4)
-1 + -1r = (-4)
-1 + -1r = -4

Solving
-1 + -1r = -4

Solving for variable 'r'.

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

Add '1' to each side of the equation.
-1 + 1 + -1r = -4 + 1

Combine like terms: -1 + 1 = 0
0 + -1r = -4 + 1
-1r = -4 + 1

Combine like terms: -4 + 1 = -3
-1r = -3

Divide each side by '-1'.
r = 3

Simplifying
r = 3

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