104=4(1+8x)-7x

Solution for 104=4(1+8x)-7x equation:

Simplifying
104 = 4(1 + 8x) + -7x
104 = (1 * 4 + 8x * 4) + -7x
104 = (4 + 32x) + -7x

Combine like terms: 32x + -7x = 25x
104 = 4 + 25x

Solving
104 = 4 + 25x

Solving for variable 'x'.

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

Add '-25x' to each side of the equation.
104 + -25x = 4 + 25x + -25x

Combine like terms: 25x + -25x = 0
104 + -25x = 4 + 0
104 + -25x = 4

Add '-104' to each side of the equation.
104 + -104 + -25x = 4 + -104

Combine like terms: 104 + -104 = 0
0 + -25x = 4 + -104
-25x = 4 + -104

Combine like terms: 4 + -104 = -100
-25x = -100

Divide each side by '-25'.
x = 4

Simplifying
x = 4