2(a+5)=4a+15

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


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

Reorder the terms:
2(5 + a) = 4a + 15
(5 * 2 + a * 2) = 4a + 15
(10 + 2a) = 4a + 15

Reorder the terms:
10 + 2a = 15 + 4a

Solving
10 + 2a = 15 + 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.
10 + 2a + -4a = 15 + 4a + -4a

Combine like terms: 2a + -4a = -2a
10 + -2a = 15 + 4a + -4a

Combine like terms: 4a + -4a = 0
10 + -2a = 15 + 0
10 + -2a = 15

Add '-10' to each side of the equation.
10 + -10 + -2a = 15 + -10

Combine like terms: 10 + -10 = 0
0 + -2a = 15 + -10
-2a = 15 + -10

Combine like terms: 15 + -10 = 5
-2a = 5

Divide each side by '-2'.
a = -2.5

Simplifying
a = -2.5

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