-0.10(40)+0.80x=0.05(x-20)

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Solution for -0.10(40)+0.80x=0.05(x-20) equation:


Simplifying
-0.10(40) + 0.80x = 0.05(x + -20)

Multiply -0.10 * 40
-4 + 0.80x = 0.05(x + -20)

Reorder the terms:
-4 + 0.80x = 0.05(-20 + x)
-4 + 0.80x = (-20 * 0.05 + x * 0.05)
-4 + 0.80x = (-1 + 0.05x)

Solving
-4 + 0.80x = -1 + 0.05x

Solving for variable 'x'.

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

Add '-0.05x' to each side of the equation.
-4 + 0.80x + -0.05x = -1 + 0.05x + -0.05x

Combine like terms: 0.80x + -0.05x = 0.75x
-4 + 0.75x = -1 + 0.05x + -0.05x

Combine like terms: 0.05x + -0.05x = 0.00
-4 + 0.75x = -1 + 0.00
-4 + 0.75x = -1

Add '4' to each side of the equation.
-4 + 4 + 0.75x = -1 + 4

Combine like terms: -4 + 4 = 0
0 + 0.75x = -1 + 4
0.75x = -1 + 4

Combine like terms: -1 + 4 = 3
0.75x = 3

Divide each side by '0.75'.
x = 4

Simplifying
x = 4

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