0.80-0.40(40+x)=-0.10(40)

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Solution for 0.80-0.40(40+x)=-0.10(40) equation:


Simplifying
0.80 + -0.40(40 + x) = -0.10(40)
0.80 + (40 * -0.40 + x * -0.40) = -0.10(40)
0.80 + (-16 + -0.40x) = -0.10(40)

Combine like terms: 0.80 + -16 = -15.2
-15.2 + -0.40x = -0.10(40)

Multiply -0.10 * 40
-15.2 + -0.40x = -4

Solving
-15.2 + -0.40x = -4

Solving for variable 'x'.

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

Add '15.2' to each side of the equation.
-15.2 + 15.2 + -0.40x = -4 + 15.2

Combine like terms: -15.2 + 15.2 = 0.0
0.0 + -0.40x = -4 + 15.2
-0.40x = -4 + 15.2

Combine like terms: -4 + 15.2 = 11.2
-0.40x = 11.2

Divide each side by '-0.40'.
x = -28

Simplifying
x = -28

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