a*30=2(a-4)

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Solution for a*30=2(a-4) equation:


Simplifying
a * 30 = 2(a + -4)

Reorder the terms for easier multiplication:
30a = 2(a + -4)

Reorder the terms:
30a = 2(-4 + a)
30a = (-4 * 2 + a * 2)
30a = (-8 + 2a)

Solving
30a = -8 + 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.
30a + -2a = -8 + 2a + -2a

Combine like terms: 30a + -2a = 28a
28a = -8 + 2a + -2a

Combine like terms: 2a + -2a = 0
28a = -8 + 0
28a = -8

Divide each side by '28'.
a = -0.2857142857

Simplifying
a = -0.2857142857

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