126=r+(20-1)(6r)+r

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Solution for 126=r+(20-1)(6r)+r equation:


Simplifying
126 = r + (20 + -1)(6r) + r

Combine like terms: 20 + -1 = 19
126 = r + (19)(6r) + r

Remove parenthesis around (6r)
126 = r + 19 * 6r + r

Multiply 19 * 6
126 = r + 114r + r

Combine like terms: r + 114r = 115r
126 = 115r + r

Combine like terms: 115r + r = 116r
126 = 116r

Solving
126 = 116r

Solving for variable 'r'.

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

Add '-116r' to each side of the equation.
126 + -116r = 116r + -116r

Combine like terms: 116r + -116r = 0
126 + -116r = 0

Add '-126' to each side of the equation.
126 + -126 + -116r = 0 + -126

Combine like terms: 126 + -126 = 0
0 + -116r = 0 + -126
-116r = 0 + -126

Combine like terms: 0 + -126 = -126
-116r = -126

Divide each side by '-116'.
r = 1.086206897

Simplifying
r = 1.086206897

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