11r^2-7r+5=8r^2+5

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Solution for 11r^2-7r+5=8r^2+5 equation:


Simplifying
11r2 + -7r + 5 = 8r2 + 5

Reorder the terms:
5 + -7r + 11r2 = 8r2 + 5

Reorder the terms:
5 + -7r + 11r2 = 5 + 8r2

Add '-5' to each side of the equation.
5 + -7r + -5 + 11r2 = 5 + -5 + 8r2

Reorder the terms:
5 + -5 + -7r + 11r2 = 5 + -5 + 8r2

Combine like terms: 5 + -5 = 0
0 + -7r + 11r2 = 5 + -5 + 8r2
-7r + 11r2 = 5 + -5 + 8r2

Combine like terms: 5 + -5 = 0
-7r + 11r2 = 0 + 8r2
-7r + 11r2 = 8r2

Solving
-7r + 11r2 = 8r2

Solving for variable 'r'.

Combine like terms: 11r2 + -8r2 = 3r2
-7r + 3r2 = 8r2 + -8r2

Combine like terms: 8r2 + -8r2 = 0
-7r + 3r2 = 0

Factor out the Greatest Common Factor (GCF), 'r'.
r(-7 + 3r) = 0

Subproblem 1

Set the factor 'r' equal to zero and attempt to solve: Simplifying r = 0 Solving r = 0 Move all terms containing r to the left, all other terms to the right. Simplifying r = 0

Subproblem 2

Set the factor '(-7 + 3r)' equal to zero and attempt to solve: Simplifying -7 + 3r = 0 Solving -7 + 3r = 0 Move all terms containing r to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 3r = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 3r = 0 + 7 3r = 0 + 7 Combine like terms: 0 + 7 = 7 3r = 7 Divide each side by '3'. r = 2.333333333 Simplifying r = 2.333333333

Solution

r = {0, 2.333333333}

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