19=2-5(9-a)

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Solution for 19=2-5(9-a) equation: 


Simplifying
19 = 2 + -5(9 + -1a)
19 = 2 + (9 * -5 + -1a * -5)
19 = 2 + (-45 + 5a)

Combine like terms: 2 + -45 = -43
19 = -43 + 5a

Solving
19 = -43 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
19 + -5a = -43 + 5a + -5a

Combine like terms: 5a + -5a = 0
19 + -5a = -43 + 0
19 + -5a = -43

Add '-19' to each side of the equation.
19 + -19 + -5a = -43 + -19

Combine like terms: 19 + -19 = 0
0 + -5a = -43 + -19
-5a = -43 + -19

Combine like terms: -43 + -19 = -62
-5a = -62

Divide each side by '-5'.
a = 12.4

Simplifying
a = 12.4

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