4a+16-a-4=-25

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Solution for 4a+16-a-4=-25 equation:


Simplifying
4a + 16 + -1a + -4 = -25

Reorder the terms:
16 + -4 + 4a + -1a = -25

Combine like terms: 16 + -4 = 12
12 + 4a + -1a = -25

Combine like terms: 4a + -1a = 3a
12 + 3a = -25

Solving
12 + 3a = -25

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + 3a = -25 + -12

Combine like terms: 12 + -12 = 0
0 + 3a = -25 + -12
3a = -25 + -12

Combine like terms: -25 + -12 = -37
3a = -37

Divide each side by '3'.
a = -12.33333333

Simplifying
a = -12.33333333

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