8x+7r=90

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Solution for 8x+7r=90 equation: 


Simplifying
8x + 7r = 90

Reorder the terms:
7r + 8x = 90

Solving
7r + 8x = 90

Solving for variable 'r'.

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

Add '-8x' to each side of the equation.
7r + 8x + -8x = 90 + -8x

Combine like terms: 8x + -8x = 0
7r + 0 = 90 + -8x
7r = 90 + -8x

Divide each side by '7'.
r = 12.85714286 + -1.142857143x

Simplifying
r = 12.85714286 + -1.142857143x

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