4a+5+4+5a=2a+15+2a+15

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Solution for 4a+5+4+5a=2a+15+2a+15 equation:


Simplifying
4a + 5 + 4 + 5a = 2a + 15 + 2a + 15

Reorder the terms:
5 + 4 + 4a + 5a = 2a + 15 + 2a + 15

Combine like terms: 5 + 4 = 9
9 + 4a + 5a = 2a + 15 + 2a + 15

Combine like terms: 4a + 5a = 9a
9 + 9a = 2a + 15 + 2a + 15

Reorder the terms:
9 + 9a = 15 + 15 + 2a + 2a

Combine like terms: 15 + 15 = 30
9 + 9a = 30 + 2a + 2a

Combine like terms: 2a + 2a = 4a
9 + 9a = 30 + 4a

Solving
9 + 9a = 30 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
9 + 9a + -4a = 30 + 4a + -4a

Combine like terms: 9a + -4a = 5a
9 + 5a = 30 + 4a + -4a

Combine like terms: 4a + -4a = 0
9 + 5a = 30 + 0
9 + 5a = 30

Add '-9' to each side of the equation.
9 + -9 + 5a = 30 + -9

Combine like terms: 9 + -9 = 0
0 + 5a = 30 + -9
5a = 30 + -9

Combine like terms: 30 + -9 = 21
5a = 21

Divide each side by '5'.
a = 4.2

Simplifying
a = 4.2

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