3a+4(2a+5)=9

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Solution for 3a+4(2a+5)=9 equation:


Simplifying
3a + 4(2a + 5) = 9

Reorder the terms:
3a + 4(5 + 2a) = 9
3a + (5 * 4 + 2a * 4) = 9
3a + (20 + 8a) = 9

Reorder the terms:
20 + 3a + 8a = 9

Combine like terms: 3a + 8a = 11a
20 + 11a = 9

Solving
20 + 11a = 9

Solving for variable 'a'.

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

Add '-20' to each side of the equation.
20 + -20 + 11a = 9 + -20

Combine like terms: 20 + -20 = 0
0 + 11a = 9 + -20
11a = 9 + -20

Combine like terms: 9 + -20 = -11
11a = -11

Divide each side by '11'.
a = -1

Simplifying
a = -1

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