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

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


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

Reorder the terms:
5(9 + r) + -2(r + -9) = 1
(9 * 5 + r * 5) + -2(r + -9) = 1
(45 + 5r) + -2(r + -9) = 1

Reorder the terms:
45 + 5r + -2(-9 + r) = 1
45 + 5r + (-9 * -2 + r * -2) = 1
45 + 5r + (18 + -2r) = 1

Reorder the terms:
45 + 18 + 5r + -2r = 1

Combine like terms: 45 + 18 = 63
63 + 5r + -2r = 1

Combine like terms: 5r + -2r = 3r
63 + 3r = 1

Solving
63 + 3r = 1

Solving for variable 'r'.

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

Add '-63' to each side of the equation.
63 + -63 + 3r = 1 + -63

Combine like terms: 63 + -63 = 0
0 + 3r = 1 + -63
3r = 1 + -63

Combine like terms: 1 + -63 = -62
3r = -62

Divide each side by '3'.
r = -20.66666667

Simplifying
r = -20.66666667

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