42=2r+6r-10+6

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Solution for 42=2r+6r-10+6 equation:


Simplifying
42 = 2r + 6r + -10 + 6

Reorder the terms:
42 = -10 + 6 + 2r + 6r

Combine like terms: -10 + 6 = -4
42 = -4 + 2r + 6r

Combine like terms: 2r + 6r = 8r
42 = -4 + 8r

Solving
42 = -4 + 8r

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
42 + -8r = -4 + 8r + -8r

Combine like terms: 8r + -8r = 0
42 + -8r = -4 + 0
42 + -8r = -4

Add '-42' to each side of the equation.
42 + -42 + -8r = -4 + -42

Combine like terms: 42 + -42 = 0
0 + -8r = -4 + -42
-8r = -4 + -42

Combine like terms: -4 + -42 = -46
-8r = -46

Divide each side by '-8'.
r = 5.75

Simplifying
r = 5.75

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