a(a-7)+14=2a

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Solution for a(a-7)+14=2a equation:


Simplifying
a(a + -7) + 14 = 2a

Reorder the terms:
a(-7 + a) + 14 = 2a
(-7 * a + a * a) + 14 = 2a
(-7a + a2) + 14 = 2a

Reorder the terms:
14 + -7a + a2 = 2a

Solving
14 + -7a + a2 = 2a

Solving for variable 'a'.

Reorder the terms:
14 + -7a + -2a + a2 = 2a + -2a

Combine like terms: -7a + -2a = -9a
14 + -9a + a2 = 2a + -2a

Combine like terms: 2a + -2a = 0
14 + -9a + a2 = 0

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

Subproblem 1

Set the factor '(2 + -1a)' equal to zero and attempt to solve: Simplifying 2 + -1a = 0 Solving 2 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1a = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1a = 0 + -2 -1a = 0 + -2 Combine like terms: 0 + -2 = -2 -1a = -2 Divide each side by '-1'. a = 2 Simplifying a = 2

Subproblem 2

Set the factor '(7 + -1a)' equal to zero and attempt to solve: Simplifying 7 + -1a = 0 Solving 7 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1a = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1a = 0 + -7 -1a = 0 + -7 Combine like terms: 0 + -7 = -7 -1a = -7 Divide each side by '-1'. a = 7 Simplifying a = 7

Solution

a = {2, 7}

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