-4.21-9.7r-12.4=-28.734-7.5+7.1r+7.73r

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Solution for -4.21-9.7r-12.4=-28.734-7.5+7.1r+7.73r equation:


Simplifying
-4.21 + -9.7r + -12.4 = -28.734 + -7.5 + 7.1r + 7.73r

Reorder the terms:
-4.21 + -12.4 + -9.7r = -28.734 + -7.5 + 7.1r + 7.73r

Combine like terms: -4.21 + -12.4 = -16.61
-16.61 + -9.7r = -28.734 + -7.5 + 7.1r + 7.73r

Combine like terms: -28.734 + -7.5 = -36.234
-16.61 + -9.7r = -36.234 + 7.1r + 7.73r

Combine like terms: 7.1r + 7.73r = 14.83r
-16.61 + -9.7r = -36.234 + 14.83r

Solving
-16.61 + -9.7r = -36.234 + 14.83r

Solving for variable 'r'.

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

Add '-14.83r' to each side of the equation.
-16.61 + -9.7r + -14.83r = -36.234 + 14.83r + -14.83r

Combine like terms: -9.7r + -14.83r = -24.53r
-16.61 + -24.53r = -36.234 + 14.83r + -14.83r

Combine like terms: 14.83r + -14.83r = 0.00
-16.61 + -24.53r = -36.234 + 0.00
-16.61 + -24.53r = -36.234

Add '16.61' to each side of the equation.
-16.61 + 16.61 + -24.53r = -36.234 + 16.61

Combine like terms: -16.61 + 16.61 = 0.00
0.00 + -24.53r = -36.234 + 16.61
-24.53r = -36.234 + 16.61

Combine like terms: -36.234 + 16.61 = -19.624
-24.53r = -19.624

Divide each side by '-24.53'.
r = 0.8

Simplifying
r = 0.8

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