7a=2(a+9)

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Solution for 7a=2(a+9) equation: 


Simplifying
7a = 2(a + 9)

Reorder the terms:
7a = 2(9 + a)
7a = (9 * 2 + a * 2)
7a = (18 + 2a)

Solving
7a = 18 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
7a + -2a = 18 + 2a + -2a

Combine like terms: 7a + -2a = 5a
5a = 18 + 2a + -2a

Combine like terms: 2a + -2a = 0
5a = 18 + 0
5a = 18

Divide each side by '5'.
a = 3.6

Simplifying
a = 3.6

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