7r+1-18=-9

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Solution for 7r+1-18=-9 equation:


Simplifying
7r + 1 + -18 = -9

Reorder the terms:
1 + -18 + 7r = -9

Combine like terms: 1 + -18 = -17
-17 + 7r = -9

Solving
-17 + 7r = -9

Solving for variable 'r'.

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

Add '17' to each side of the equation.
-17 + 17 + 7r = -9 + 17

Combine like terms: -17 + 17 = 0
0 + 7r = -9 + 17
7r = -9 + 17

Combine like terms: -9 + 17 = 8
7r = 8

Divide each side by '7'.
r = 1.142857143

Simplifying
r = 1.142857143

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