42-7x*2+4x=0

Solution for 42-7x*2+4x=0 equation:

Simplifying
42 + -7x * 2 + 4x = 0

Reorder the terms for easier multiplication:
42 + -7 * 2x + 4x = 0

Multiply -7 * 2
42 + -14x + 4x = 0

Combine like terms: -14x + 4x = -10x
42 + -10x = 0

Solving
42 + -10x = 0

Solving for variable 'x'.

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

Add '-42' to each side of the equation.
42 + -42 + -10x = 0 + -42

Combine like terms: 42 + -42 = 0
0 + -10x = 0 + -42
-10x = 0 + -42

Combine like terms: 0 + -42 = -42
-10x = -42

Divide each side by '-10'.
x = 4.2

Simplifying
x = 4.2