0.2(x+70)+0.6x=30

Solution for 0.2(x+70)+0.6x=30 equation:

Simplifying
0.2(x + 70) + 0.6x = 30

Reorder the terms:
0.2(70 + x) + 0.6x = 30
(70 * 0.2 + x * 0.2) + 0.6x = 30
(14 + 0.2x) + 0.6x = 30

Combine like terms: 0.2x + 0.6x = 0.8x
14 + 0.8x = 30

Solving
14 + 0.8x = 30

Solving for variable 'x'.

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

Add '-14' to each side of the equation.
14 + -14 + 0.8x = 30 + -14

Combine like terms: 14 + -14 = 0
0 + 0.8x = 30 + -14
0.8x = 30 + -14

Combine like terms: 30 + -14 = 16
0.8x = 16

Divide each side by '0.8'.
x = 20

Simplifying
x = 20