2r-2=-7(8+r)

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Solution for 2r-2=-7(8+r) equation:


Simplifying
2r + -2 = -7(8 + r)

Reorder the terms:
-2 + 2r = -7(8 + r)
-2 + 2r = (8 * -7 + r * -7)
-2 + 2r = (-56 + -7r)

Solving
-2 + 2r = -56 + -7r

Solving for variable 'r'.

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

Add '7r' to each side of the equation.
-2 + 2r + 7r = -56 + -7r + 7r

Combine like terms: 2r + 7r = 9r
-2 + 9r = -56 + -7r + 7r

Combine like terms: -7r + 7r = 0
-2 + 9r = -56 + 0
-2 + 9r = -56

Add '2' to each side of the equation.
-2 + 2 + 9r = -56 + 2

Combine like terms: -2 + 2 = 0
0 + 9r = -56 + 2
9r = -56 + 2

Combine like terms: -56 + 2 = -54
9r = -54

Divide each side by '9'.
r = -6

Simplifying
r = -6

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