105=5(1-4x)

Solution for 105=5(1-4x) equation:

Simplifying
105 = 5(1 + -4x)
105 = (1 * 5 + -4x * 5)
105 = (5 + -20x)

Solving
105 = 5 + -20x

Solving for variable 'x'.

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

Add '20x' to each side of the equation.
105 + 20x = 5 + -20x + 20x

Combine like terms: -20x + 20x = 0
105 + 20x = 5 + 0
105 + 20x = 5

Add '-105' to each side of the equation.
105 + -105 + 20x = 5 + -105

Combine like terms: 105 + -105 = 0
0 + 20x = 5 + -105
20x = 5 + -105

Combine like terms: 5 + -105 = -100
20x = -100

Divide each side by '20'.
x = -5

Simplifying
x = -5