-2(a-1)=4(2a+1)

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Solution for -2(a-1)=4(2a+1) equation:


Simplifying
-2(a + -1) = 4(2a + 1)

Reorder the terms:
-2(-1 + a) = 4(2a + 1)
(-1 * -2 + a * -2) = 4(2a + 1)
(2 + -2a) = 4(2a + 1)

Reorder the terms:
2 + -2a = 4(1 + 2a)
2 + -2a = (1 * 4 + 2a * 4)
2 + -2a = (4 + 8a)

Solving
2 + -2a = 4 + 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
2 + -2a + -8a = 4 + 8a + -8a

Combine like terms: -2a + -8a = -10a
2 + -10a = 4 + 8a + -8a

Combine like terms: 8a + -8a = 0
2 + -10a = 4 + 0
2 + -10a = 4

Add '-2' to each side of the equation.
2 + -2 + -10a = 4 + -2

Combine like terms: 2 + -2 = 0
0 + -10a = 4 + -2
-10a = 4 + -2

Combine like terms: 4 + -2 = 2
-10a = 2

Divide each side by '-10'.
a = -0.2

Simplifying
a = -0.2

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