0.10x+.05(18-x)=.10(13)

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Solution for 0.10x+.05(18-x)=.10(13) equation:


Simplifying
0.10x + 0.05(18 + -1x) = 0.10(13)
0.10x + (18 * 0.05 + -1x * 0.05) = 0.10(13)
0.10x + (0.9 + -0.05x) = 0.10(13)

Reorder the terms:
0.9 + 0.10x + -0.05x = 0.10(13)

Combine like terms: 0.10x + -0.05x = 0.05x
0.9 + 0.05x = 0.10(13)

Multiply 0.10 * 13
0.9 + 0.05x = 1.3

Solving
0.9 + 0.05x = 1.3

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 + 0.05x = 1.3 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + 0.05x = 1.3 + -0.9
0.05x = 1.3 + -0.9

Combine like terms: 1.3 + -0.9 = 0.4
0.05x = 0.4

Divide each side by '0.05'.
x = 8

Simplifying
x = 8

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