3a+7+4b+9=

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Solution for 3a+7+4b+9= equation:


Simplifying
3a + 7 + 4b + 9 = 0

Reorder the terms:
7 + 9 + 3a + 4b = 0

Combine like terms: 7 + 9 = 16
16 + 3a + 4b = 0

Solving
16 + 3a + 4b = 0

Solving for variable 'a'.

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

Add '-16' to each side of the equation.
16 + 3a + -16 + 4b = 0 + -16

Reorder the terms:
16 + -16 + 3a + 4b = 0 + -16

Combine like terms: 16 + -16 = 0
0 + 3a + 4b = 0 + -16
3a + 4b = 0 + -16

Combine like terms: 0 + -16 = -16
3a + 4b = -16

Add '-4b' to each side of the equation.
3a + 4b + -4b = -16 + -4b

Combine like terms: 4b + -4b = 0
3a + 0 = -16 + -4b
3a = -16 + -4b

Divide each side by '3'.
a = -5.333333333 + -1.333333333b

Simplifying
a = -5.333333333 + -1.333333333b

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