19+a=4(1-a)

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Solution for 19+a=4(1-a) equation:


Simplifying
19 + a = 4(1 + -1a)
19 + a = (1 * 4 + -1a * 4)
19 + a = (4 + -4a)

Solving
19 + a = 4 + -4a

Solving for variable 'a'.

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

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

Combine like terms: a + 4a = 5a
19 + 5a = 4 + -4a + 4a

Combine like terms: -4a + 4a = 0
19 + 5a = 4 + 0
19 + 5a = 4

Add '-19' to each side of the equation.
19 + -19 + 5a = 4 + -19

Combine like terms: 19 + -19 = 0
0 + 5a = 4 + -19
5a = 4 + -19

Combine like terms: 4 + -19 = -15
5a = -15

Divide each side by '5'.
a = -3

Simplifying
a = -3

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