a+3a+5a-7a=18a

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Solution for a+3a+5a-7a=18a equation:


Simplifying
a + 3a + 5a + -7a = 18a

Combine like terms: a + 3a = 4a
4a + 5a + -7a = 18a

Combine like terms: 4a + 5a = 9a
9a + -7a = 18a

Combine like terms: 9a + -7a = 2a
2a = 18a

Solving
2a = 18a

Solving for variable 'a'.

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

Add '-18a' to each side of the equation.
2a + -18a = 18a + -18a

Combine like terms: 2a + -18a = -16a
-16a = 18a + -18a

Combine like terms: 18a + -18a = 0
-16a = 0

Divide each side by '-16'.
a = 0

Simplifying
a = 0

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