-(r-3)+1=-(2+7r)

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Solution for -(r-3)+1=-(2+7r) equation:


Simplifying
-1(r + -3) + 1 = -1(2 + 7r)

Reorder the terms:
-1(-3 + r) + 1 = -1(2 + 7r)
(-3 * -1 + r * -1) + 1 = -1(2 + 7r)
(3 + -1r) + 1 = -1(2 + 7r)

Reorder the terms:
3 + 1 + -1r = -1(2 + 7r)

Combine like terms: 3 + 1 = 4
4 + -1r = -1(2 + 7r)
4 + -1r = (2 * -1 + 7r * -1)
4 + -1r = (-2 + -7r)

Solving
4 + -1r = -2 + -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.
4 + -1r + 7r = -2 + -7r + 7r

Combine like terms: -1r + 7r = 6r
4 + 6r = -2 + -7r + 7r

Combine like terms: -7r + 7r = 0
4 + 6r = -2 + 0
4 + 6r = -2

Add '-4' to each side of the equation.
4 + -4 + 6r = -2 + -4

Combine like terms: 4 + -4 = 0
0 + 6r = -2 + -4
6r = -2 + -4

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

Divide each side by '6'.
r = -1

Simplifying
r = -1

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