7x^2-5r-8=-8

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Solution for 7x^2-5r-8=-8 equation: 


Simplifying
7x2 + -5r + -8 = -8

Reorder the terms:
-8 + -5r + 7x2 = -8

Add '8' to each side of the equation.
-8 + -5r + 8 + 7x2 = -8 + 8

Reorder the terms:
-8 + 8 + -5r + 7x2 = -8 + 8

Combine like terms: -8 + 8 = 0
0 + -5r + 7x2 = -8 + 8
-5r + 7x2 = -8 + 8

Combine like terms: -8 + 8 = 0
-5r + 7x2 = 0

Solving
-5r + 7x2 = 0

Solving for variable 'r'.

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

Add '-7x2' to each side of the equation.
-5r + 7x2 + -7x2 = 0 + -7x2

Combine like terms: 7x2 + -7x2 = 0
-5r + 0 = 0 + -7x2
-5r = 0 + -7x2
Remove the zero:
-5r = -7x2

Divide each side by '-5'.
r = 1.4x2

Simplifying
r = 1.4x2

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