0.10x+.05(20-x)=.10(9)

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Solution for 0.10x+.05(20-x)=.10(9) equation:


Simplifying
0.10x + 0.05(20 + -1x) = 0.10(9)
0.10x + (20 * 0.05 + -1x * 0.05) = 0.10(9)
0.10x + (1 + -0.05x) = 0.10(9)

Reorder the terms:
1 + 0.10x + -0.05x = 0.10(9)

Combine like terms: 0.10x + -0.05x = 0.05x
1 + 0.05x = 0.10(9)

Multiply 0.10 * 9
1 + 0.05x = 0.9

Solving
1 + 0.05x = 0.9

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 0.05x = 0.9 + -1

Combine like terms: 1 + -1 = 0
0 + 0.05x = 0.9 + -1
0.05x = 0.9 + -1

Combine like terms: 0.9 + -1 = -0.1
0.05x = -0.1

Divide each side by '0.05'.
x = -2

Simplifying
x = -2

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