84=-6(r-7)

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Solution for 84=-6(r-7) equation:


Simplifying
84 = -6(r + -7)

Reorder the terms:
84 = -6(-7 + r)
84 = (-7 * -6 + r * -6)
84 = (42 + -6r)

Solving
84 = 42 + -6r

Solving for variable 'r'.

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

Add '6r' to each side of the equation.
84 + 6r = 42 + -6r + 6r

Combine like terms: -6r + 6r = 0
84 + 6r = 42 + 0
84 + 6r = 42

Add '-84' to each side of the equation.
84 + -84 + 6r = 42 + -84

Combine like terms: 84 + -84 = 0
0 + 6r = 42 + -84
6r = 42 + -84

Combine like terms: 42 + -84 = -42
6r = -42

Divide each side by '6'.
r = -7

Simplifying
r = -7

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