42=4(1+2x)

Solution for 42=4(1+2x) equation:

Simplifying
42 = 4(1 + 2x)
42 = (1 * 4 + 2x * 4)
42 = (4 + 8x)

Solving
42 = 4 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
42 + -8x = 4 + 8x + -8x

Combine like terms: 8x + -8x = 0
42 + -8x = 4 + 0
42 + -8x = 4

Add '-42' to each side of the equation.
42 + -42 + -8x = 4 + -42

Combine like terms: 42 + -42 = 0
0 + -8x = 4 + -42
-8x = 4 + -42

Combine like terms: 4 + -42 = -38
-8x = -38

Divide each side by '-8'.
x = 4.75

Simplifying
x = 4.75