X+0.1(9)=0.4(x+9)

Solution for X+0.1(9)=0.4(x+9) equation:

Simplifying
X + 0.1(9) = 0.4(x + 9)

Multiply 0.1 * 9
X + 0.9 = 0.4(x + 9)

Reorder the terms:
0.9 + X = 0.4(x + 9)

Reorder the terms:
0.9 + X = 0.4(9 + x)
0.9 + X = (9 * 0.4 + x * 0.4)
0.9 + X = (3.6 + 0.4x)

Solving
0.9 + X = 3.6 + 0.4x

Solving for variable 'X'.

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

Add '-0.9' to each side of the equation.
0.9 + -0.9 + X = 3.6 + -0.9 + 0.4x

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + X = 3.6 + -0.9 + 0.4x
X = 3.6 + -0.9 + 0.4x

Combine like terms: 3.6 + -0.9 = 2.7
X = 2.7 + 0.4x

Simplifying
X = 2.7 + 0.4x