7a=a(a-10)

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Solution for 7a=a(a-10) equation:


Simplifying
7a = a(a + -10)

Reorder the terms:
7a = a(-10 + a)
7a = (-10 * a + a * a)
7a = (-10a + a2)

Solving
7a = -10a + a2

Solving for variable 'a'.

Combine like terms: 7a + 10a = 17a
17a + -1a2 = -10a + a2 + 10a + -1a2

Reorder the terms:
17a + -1a2 = -10a + 10a + a2 + -1a2

Combine like terms: -10a + 10a = 0
17a + -1a2 = 0 + a2 + -1a2
17a + -1a2 = a2 + -1a2

Combine like terms: a2 + -1a2 = 0
17a + -1a2 = 0

Factor out the Greatest Common Factor (GCF), 'a'.
a(17 + -1a) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(17 + -1a)' equal to zero and attempt to solve: Simplifying 17 + -1a = 0 Solving 17 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-17' to each side of the equation. 17 + -17 + -1a = 0 + -17 Combine like terms: 17 + -17 = 0 0 + -1a = 0 + -17 -1a = 0 + -17 Combine like terms: 0 + -17 = -17 -1a = -17 Divide each side by '-1'. a = 17 Simplifying a = 17

Solution

a = {0, 17}

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