5r+9-2(1-r)=1

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Solution for 5r+9-2(1-r)=1 equation:


Simplifying
5r + 9 + -2(1 + -1r) = 1
5r + 9 + (1 * -2 + -1r * -2) = 1
5r + 9 + (-2 + 2r) = 1

Reorder the terms:
9 + -2 + 5r + 2r = 1

Combine like terms: 9 + -2 = 7
7 + 5r + 2r = 1

Combine like terms: 5r + 2r = 7r
7 + 7r = 1

Solving
7 + 7r = 1

Solving for variable 'r'.

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

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

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

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

Divide each side by '7'.
r = -0.8571428571

Simplifying
r = -0.8571428571

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