4a(5a)+9=x

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Solution for 4a(5a)+9=x equation:


Simplifying
4a(5a) + 9 = x

Remove parenthesis around (5a)
4a * 5a + 9 = x

Reorder the terms for easier multiplication:
4 * 5a * a + 9 = x

Multiply 4 * 5
20a * a + 9 = x

Multiply a * a
20a2 + 9 = x

Reorder the terms:
9 + 20a2 = x

Solving
9 + 20a2 = x

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + 20a2 = -9 + x

Combine like terms: 9 + -9 = 0
0 + 20a2 = -9 + x
20a2 = -9 + x

Divide each side by '20'.
a2 = -0.45 + 0.05x

Simplifying
a2 = -0.45 + 0.05x

Reorder the terms:
0.45 + a2 + -0.05x = -0.45 + 0.05x + 0.45 + -0.05x

Reorder the terms:
0.45 + a2 + -0.05x = -0.45 + 0.45 + 0.05x + -0.05x

Combine like terms: -0.45 + 0.45 = 0.00
0.45 + a2 + -0.05x = 0.00 + 0.05x + -0.05x
0.45 + a2 + -0.05x = 0.05x + -0.05x

Combine like terms: 0.05x + -0.05x = 0.00
0.45 + a2 + -0.05x = 0.00

The solution to this equation could not be determined.

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