42r-26-7r+7=85

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Solution for 42r-26-7r+7=85 equation:


Simplifying
42r + -26 + -7r + 7 = 85

Reorder the terms:
-26 + 7 + 42r + -7r = 85

Combine like terms: -26 + 7 = -19
-19 + 42r + -7r = 85

Combine like terms: 42r + -7r = 35r
-19 + 35r = 85

Solving
-19 + 35r = 85

Solving for variable 'r'.

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

Add '19' to each side of the equation.
-19 + 19 + 35r = 85 + 19

Combine like terms: -19 + 19 = 0
0 + 35r = 85 + 19
35r = 85 + 19

Combine like terms: 85 + 19 = 104
35r = 104

Divide each side by '35'.
r = 2.971428571

Simplifying
r = 2.971428571

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