0.40X+0.05(18-X)=0.10(26)

Solution for 0.40X+0.05(18-X)=0.10(26) equation:

Simplifying
0.40X + 0.05(18 + -1X) = 0.10(26)
0.40X + (18 * 0.05 + -1X * 0.05) = 0.10(26)
0.40X + (0.9 + -0.05X) = 0.10(26)

Reorder the terms:
0.9 + 0.40X + -0.05X = 0.10(26)

Combine like terms: 0.40X + -0.05X = 0.35X
0.9 + 0.35X = 0.10(26)

Multiply 0.10 * 26
0.9 + 0.35X = 2.6

Solving
0.9 + 0.35X = 2.6

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 + 0.35X = 2.6 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + 0.35X = 2.6 + -0.9
0.35X = 2.6 + -0.9

Combine like terms: 2.6 + -0.9 = 1.7
0.35X = 1.7

Divide each side by '0.35'.
X = 4.857142857

Simplifying
X = 4.857142857