4=a(5)(-5)

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Solution for 4=a(5)(-5) equation:


Simplifying
4 = a(5)(-5)

Reorder the terms for easier multiplication:
4 = 5 * -5a

Multiply 5 * -5
4 = -25a

Solving
4 = -25a

Solving for variable 'a'.

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

Add '25a' to each side of the equation.
4 + 25a = -25a + 25a

Combine like terms: -25a + 25a = 0
4 + 25a = 0

Add '-4' to each side of the equation.
4 + -4 + 25a = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 25a = 0 + -4
25a = 0 + -4

Combine like terms: 0 + -4 = -4
25a = -4

Divide each side by '25'.
a = -0.16

Simplifying
a = -0.16

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