100=4(1-3a)

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Solution for 100=4(1-3a) equation:


Simplifying
100 = 4(1 + -3a)
100 = (1 * 4 + -3a * 4)
100 = (4 + -12a)

Solving
100 = 4 + -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.
100 + 12a = 4 + -12a + 12a

Combine like terms: -12a + 12a = 0
100 + 12a = 4 + 0
100 + 12a = 4

Add '-100' to each side of the equation.
100 + -100 + 12a = 4 + -100

Combine like terms: 100 + -100 = 0
0 + 12a = 4 + -100
12a = 4 + -100

Combine like terms: 4 + -100 = -96
12a = -96

Divide each side by '12'.
a = -8

Simplifying
a = -8

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