7a+2a+5-5a+9b-1=

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Solution for 7a+2a+5-5a+9b-1= equation:


Simplifying
7a + 2a + 5 + -5a + 9b + -1 = 0

Reorder the terms:
5 + -1 + 7a + 2a + -5a + 9b = 0

Combine like terms: 5 + -1 = 4
4 + 7a + 2a + -5a + 9b = 0

Combine like terms: 7a + 2a = 9a
4 + 9a + -5a + 9b = 0

Combine like terms: 9a + -5a = 4a
4 + 4a + 9b = 0

Solving
4 + 4a + 9b = 0

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + 4a + -4 + 9b = 0 + -4

Reorder the terms:
4 + -4 + 4a + 9b = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 4a + 9b = 0 + -4
4a + 9b = 0 + -4

Combine like terms: 0 + -4 = -4
4a + 9b = -4

Add '-9b' to each side of the equation.
4a + 9b + -9b = -4 + -9b

Combine like terms: 9b + -9b = 0
4a + 0 = -4 + -9b
4a = -4 + -9b

Divide each side by '4'.
a = -1 + -2.25b

Simplifying
a = -1 + -2.25b

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