.40x+.05(10-x)=.10(-30)

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Solution for .40x+.05(10-x)=.10(-30) equation:


Simplifying
0.40x + 0.05(10 + -1x) = 0.10(-30)
0.40x + (10 * 0.05 + -1x * 0.05) = 0.10(-30)
0.40x + (0.5 + -0.05x) = 0.10(-30)

Reorder the terms:
0.5 + 0.40x + -0.05x = 0.10(-30)

Combine like terms: 0.40x + -0.05x = 0.35x
0.5 + 0.35x = 0.10(-30)

Multiply 0.10 * -30
0.5 + 0.35x = -3

Solving
0.5 + 0.35x = -3

Solving for variable 'x'.

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

Add '-0.5' to each side of the equation.
0.5 + -0.5 + 0.35x = -3 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + 0.35x = -3 + -0.5
0.35x = -3 + -0.5

Combine like terms: -3 + -0.5 = -3.5
0.35x = -3.5

Divide each side by '0.35'.
x = -10

Simplifying
x = -10

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