0.45x+0.05(18-x)=0.10(-31)

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Solution for 0.45x+0.05(18-x)=0.10(-31) equation:


Simplifying
0.45x + 0.05(18 + -1x) = 0.10(-31)
0.45x + (18 * 0.05 + -1x * 0.05) = 0.10(-31)
0.45x + (0.9 + -0.05x) = 0.10(-31)

Reorder the terms:
0.9 + 0.45x + -0.05x = 0.10(-31)

Combine like terms: 0.45x + -0.05x = 0.4x
0.9 + 0.4x = 0.10(-31)

Multiply 0.10 * -31
0.9 + 0.4x = -3.1

Solving
0.9 + 0.4x = -3.1

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 + 0.4x = -3.1 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + 0.4x = -3.1 + -0.9
0.4x = -3.1 + -0.9

Combine like terms: -3.1 + -0.9 = -4
0.4x = -4

Divide each side by '0.4'.
x = -10

Simplifying
x = -10

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