11+3(7a+9)=17

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Solution for 11+3(7a+9)=17 equation: 


Simplifying
11 + 3(7a + 9) = 17

Reorder the terms:
11 + 3(9 + 7a) = 17
11 + (9 * 3 + 7a * 3) = 17
11 + (27 + 21a) = 17

Combine like terms: 11 + 27 = 38
38 + 21a = 17

Solving
38 + 21a = 17

Solving for variable 'a'.

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

Add '-38' to each side of the equation.
38 + -38 + 21a = 17 + -38

Combine like terms: 38 + -38 = 0
0 + 21a = 17 + -38
21a = 17 + -38

Combine like terms: 17 + -38 = -21
21a = -21

Divide each side by '21'.
a = -1

Simplifying
a = -1

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