2a+3.5+3a+1.5+2.5a-5=180

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Solution for 2a+3.5+3a+1.5+2.5a-5=180 equation: 


Simplifying
2a + 3.5 + 3a + 1.5 + 2.5a + -5 = 180

Reorder the terms:
3.5 + 1.5 + -5 + 2a + 3a + 2.5a = 180

Combine like terms: 3.5 + 1.5 = 5
5 + -5 + 2a + 3a + 2.5a = 180

Combine like terms: 5 + -5 = 0
0 + 2a + 3a + 2.5a = 180
2a + 3a + 2.5a = 180

Combine like terms: 2a + 3a = 5a
5a + 2.5a = 180

Combine like terms: 5a + 2.5a = 7.5a
7.5a = 180

Solving
7.5a = 180

Solving for variable 'a'.

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

Divide each side by '7.5'.
a = 24

Simplifying
a = 24

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