a+3a+6a=7+3a

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Solution for a+3a+6a=7+3a equation:


Simplifying
a + 3a + 6a = 7 + 3a

Combine like terms: a + 3a = 4a
4a + 6a = 7 + 3a

Combine like terms: 4a + 6a = 10a
10a = 7 + 3a

Solving
10a = 7 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
10a + -3a = 7 + 3a + -3a

Combine like terms: 10a + -3a = 7a
7a = 7 + 3a + -3a

Combine like terms: 3a + -3a = 0
7a = 7 + 0
7a = 7

Divide each side by '7'.
a = 1

Simplifying
a = 1

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