-42=4r-2

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Solution for -42=4r-2 equation:


Simplifying
-42 = 4r + -2

Reorder the terms:
-42 = -2 + 4r

Solving
-42 = -2 + 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
-42 + -4r = -2 + 4r + -4r

Combine like terms: 4r + -4r = 0
-42 + -4r = -2 + 0
-42 + -4r = -2

Add '42' to each side of the equation.
-42 + 42 + -4r = -2 + 42

Combine like terms: -42 + 42 = 0
0 + -4r = -2 + 42
-4r = -2 + 42

Combine like terms: -2 + 42 = 40
-4r = 40

Divide each side by '-4'.
r = -10

Simplifying
r = -10

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