7b^2+2=9b

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Solution for 7b^2+2=9b equation:


Simplifying
7b2 + 2 = 9b

Reorder the terms:
2 + 7b2 = 9b

Solving
2 + 7b2 = 9b

Solving for variable 'b'.

Reorder the terms:
2 + -9b + 7b2 = 9b + -9b

Combine like terms: 9b + -9b = 0
2 + -9b + 7b2 = 0

Factor a trinomial.
(2 + -7b)(1 + -1b) = 0

Subproblem 1

Set the factor '(2 + -7b)' equal to zero and attempt to solve: Simplifying 2 + -7b = 0 Solving 2 + -7b = 0 Move all terms containing b to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -7b = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -7b = 0 + -2 -7b = 0 + -2 Combine like terms: 0 + -2 = -2 -7b = -2 Divide each side by '-7'. b = 0.2857142857 Simplifying b = 0.2857142857

Subproblem 2

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

Solution

b = {0.2857142857, 1}

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