3a+2[2+39a-1]=2(3a+4)

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Solution for 3a+2[2+39a-1]=2(3a+4) equation:


Simplifying
3a + 2[2 + 39a + -1] = 2(3a + 4)

Reorder the terms:
3a + 2[2 + -1 + 39a] = 2(3a + 4)

Combine like terms: 2 + -1 = 1
3a + 2[1 + 39a] = 2(3a + 4)
3a + [1 * 2 + 39a * 2] = 2(3a + 4)
3a + [2 + 78a] = 2(3a + 4)

Reorder the terms:
2 + 3a + 78a = 2(3a + 4)

Combine like terms: 3a + 78a = 81a
2 + 81a = 2(3a + 4)

Reorder the terms:
2 + 81a = 2(4 + 3a)
2 + 81a = (4 * 2 + 3a * 2)
2 + 81a = (8 + 6a)

Solving
2 + 81a = 8 + 6a

Solving for variable 'a'.

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

Add '-6a' to each side of the equation.
2 + 81a + -6a = 8 + 6a + -6a

Combine like terms: 81a + -6a = 75a
2 + 75a = 8 + 6a + -6a

Combine like terms: 6a + -6a = 0
2 + 75a = 8 + 0
2 + 75a = 8

Add '-2' to each side of the equation.
2 + -2 + 75a = 8 + -2

Combine like terms: 2 + -2 = 0
0 + 75a = 8 + -2
75a = 8 + -2

Combine like terms: 8 + -2 = 6
75a = 6

Divide each side by '75'.
a = 0.08

Simplifying
a = 0.08

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