a+2a+3a=4(a+5)

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Solution for a+2a+3a=4(a+5) equation:


Simplifying
a + 2a + 3a = 4(a + 5)

Combine like terms: a + 2a = 3a
3a + 3a = 4(a + 5)

Combine like terms: 3a + 3a = 6a
6a = 4(a + 5)

Reorder the terms:
6a = 4(5 + a)
6a = (5 * 4 + a * 4)
6a = (20 + 4a)

Solving
6a = 20 + 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.
6a + -4a = 20 + 4a + -4a

Combine like terms: 6a + -4a = 2a
2a = 20 + 4a + -4a

Combine like terms: 4a + -4a = 0
2a = 20 + 0
2a = 20

Divide each side by '2'.
a = 10

Simplifying
a = 10

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