7=-(-2+r)

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


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

Solving
7 = 2 + -1r

Solving for variable 'r'.

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

Add 'r' to each side of the equation.
7 + r = 2 + -1r + r

Combine like terms: -1r + r = 0
7 + r = 2 + 0
7 + r = 2

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

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

Combine like terms: 2 + -7 = -5
r = -5

Simplifying
r = -5

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