7r^2-19r-14=-3r+1

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Solution for 7r^2-19r-14=-3r+1 equation:


Simplifying
7r2 + -19r + -14 = -3r + 1

Reorder the terms:
-14 + -19r + 7r2 = -3r + 1

Reorder the terms:
-14 + -19r + 7r2 = 1 + -3r

Solving
-14 + -19r + 7r2 = 1 + -3r

Solving for variable 'r'.

Reorder the terms:
-14 + -1 + -19r + 3r + 7r2 = 1 + -3r + -1 + 3r

Combine like terms: -14 + -1 = -15
-15 + -19r + 3r + 7r2 = 1 + -3r + -1 + 3r

Combine like terms: -19r + 3r = -16r
-15 + -16r + 7r2 = 1 + -3r + -1 + 3r

Reorder the terms:
-15 + -16r + 7r2 = 1 + -1 + -3r + 3r

Combine like terms: 1 + -1 = 0
-15 + -16r + 7r2 = 0 + -3r + 3r
-15 + -16r + 7r2 = -3r + 3r

Combine like terms: -3r + 3r = 0
-15 + -16r + 7r2 = 0

Factor a trinomial.
(-5 + -7r)(3 + -1r) = 0

Subproblem 1

Set the factor '(-5 + -7r)' equal to zero and attempt to solve: Simplifying -5 + -7r = 0 Solving -5 + -7r = 0 Move all terms containing r to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -7r = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -7r = 0 + 5 -7r = 0 + 5 Combine like terms: 0 + 5 = 5 -7r = 5 Divide each side by '-7'. r = -0.7142857143 Simplifying r = -0.7142857143

Subproblem 2

Set the factor '(3 + -1r)' equal to zero and attempt to solve: Simplifying 3 + -1r = 0 Solving 3 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1r = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1r = 0 + -3 -1r = 0 + -3 Combine like terms: 0 + -3 = -3 -1r = -3 Divide each side by '-1'. r = 3 Simplifying r = 3

Solution

r = {-0.7142857143, 3}

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