19=-7+9(a-8)

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Solution for 19=-7+9(a-8) equation:


Simplifying
19 = -7 + 9(a + -8)

Reorder the terms:
19 = -7 + 9(-8 + a)
19 = -7 + (-8 * 9 + a * 9)
19 = -7 + (-72 + 9a)

Combine like terms: -7 + -72 = -79
19 = -79 + 9a

Solving
19 = -79 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
19 + -9a = -79 + 9a + -9a

Combine like terms: 9a + -9a = 0
19 + -9a = -79 + 0
19 + -9a = -79

Add '-19' to each side of the equation.
19 + -19 + -9a = -79 + -19

Combine like terms: 19 + -19 = 0
0 + -9a = -79 + -19
-9a = -79 + -19

Combine like terms: -79 + -19 = -98
-9a = -98

Divide each side by '-9'.
a = 10.88888889

Simplifying
a = 10.88888889

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