.72=.4(x+1.4)

Solution for .72=.4(x+1.4) equation:

Simplifying
0.72 = 0.4(x + 1.4)

Reorder the terms:
0.72 = 0.4(1.4 + x)
0.72 = (1.4 * 0.4 + x * 0.4)
0.72 = (0.56 + 0.4x)

Solving
0.72 = 0.56 + 0.4x

Solving for variable 'x'.

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

Add '-0.4x' to each side of the equation.
0.72 + -0.4x = 0.56 + 0.4x + -0.4x

Combine like terms: 0.4x + -0.4x = 0.0
0.72 + -0.4x = 0.56 + 0.0
0.72 + -0.4x = 0.56

Add '-0.72' to each side of the equation.
0.72 + -0.72 + -0.4x = 0.56 + -0.72

Combine like terms: 0.72 + -0.72 = 0.00
0.00 + -0.4x = 0.56 + -0.72
-0.4x = 0.56 + -0.72

Combine like terms: 0.56 + -0.72 = -0.16
-0.4x = -0.16

Divide each side by '-0.4'.
x = 0.4

Simplifying
x = 0.4