-4.5-20.5r=r-(7.5r+0.5)

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Solution for -4.5-20.5r=r-(7.5r+0.5) equation:


Simplifying
-4.5 + -20.5r = r + -1(7.5r + 0.5)

Reorder the terms:
-4.5 + -20.5r = r + -1(0.5 + 7.5r)
-4.5 + -20.5r = r + (0.5 * -1 + 7.5r * -1)
-4.5 + -20.5r = r + (-0.5 + -7.5r)

Reorder the terms:
-4.5 + -20.5r = -0.5 + r + -7.5r

Combine like terms: r + -7.5r = -6.5r
-4.5 + -20.5r = -0.5 + -6.5r

Solving
-4.5 + -20.5r = -0.5 + -6.5r

Solving for variable 'r'.

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

Add '6.5r' to each side of the equation.
-4.5 + -20.5r + 6.5r = -0.5 + -6.5r + 6.5r

Combine like terms: -20.5r + 6.5r = -14r
-4.5 + -14r = -0.5 + -6.5r + 6.5r

Combine like terms: -6.5r + 6.5r = 0.0
-4.5 + -14r = -0.5 + 0.0
-4.5 + -14r = -0.5

Add '4.5' to each side of the equation.
-4.5 + 4.5 + -14r = -0.5 + 4.5

Combine like terms: -4.5 + 4.5 = 0.0
0.0 + -14r = -0.5 + 4.5
-14r = -0.5 + 4.5

Combine like terms: -0.5 + 4.5 = 4
-14r = 4

Divide each side by '-14'.
r = -0.2857142857

Simplifying
r = -0.2857142857

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