30+2a=3-7(3+2a)

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Solution for 30+2a=3-7(3+2a) equation:


Simplifying
30 + 2a = 3 + -7(3 + 2a)
30 + 2a = 3 + (3 * -7 + 2a * -7)
30 + 2a = 3 + (-21 + -14a)

Combine like terms: 3 + -21 = -18
30 + 2a = -18 + -14a

Solving
30 + 2a = -18 + -14a

Solving for variable 'a'.

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

Add '14a' to each side of the equation.
30 + 2a + 14a = -18 + -14a + 14a

Combine like terms: 2a + 14a = 16a
30 + 16a = -18 + -14a + 14a

Combine like terms: -14a + 14a = 0
30 + 16a = -18 + 0
30 + 16a = -18

Add '-30' to each side of the equation.
30 + -30 + 16a = -18 + -30

Combine like terms: 30 + -30 = 0
0 + 16a = -18 + -30
16a = -18 + -30

Combine like terms: -18 + -30 = -48
16a = -48

Divide each side by '16'.
a = -3

Simplifying
a = -3

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