30-7a=6a+3(5-6a)

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Solution for 30-7a=6a+3(5-6a) equation:


Simplifying
30 + -7a = 6a + 3(5 + -6a)
30 + -7a = 6a + (5 * 3 + -6a * 3)
30 + -7a = 6a + (15 + -18a)

Reorder the terms:
30 + -7a = 15 + 6a + -18a

Combine like terms: 6a + -18a = -12a
30 + -7a = 15 + -12a

Solving
30 + -7a = 15 + -12a

Solving for variable 'a'.

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

Add '12a' to each side of the equation.
30 + -7a + 12a = 15 + -12a + 12a

Combine like terms: -7a + 12a = 5a
30 + 5a = 15 + -12a + 12a

Combine like terms: -12a + 12a = 0
30 + 5a = 15 + 0
30 + 5a = 15

Add '-30' to each side of the equation.
30 + -30 + 5a = 15 + -30

Combine like terms: 30 + -30 = 0
0 + 5a = 15 + -30
5a = 15 + -30

Combine like terms: 15 + -30 = -15
5a = -15

Divide each side by '5'.
a = -3

Simplifying
a = -3

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