-0.10(21)+0.85=0.05(x-10)

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Solution for -0.10(21)+0.85=0.05(x-10) equation:


Simplifying
-0.10(21) + 0.85 = 0.05(x + -10)

Multiply -0.10 * 21
-2.1 + 0.85 = 0.05(x + -10)

Combine like terms: -2.1 + 0.85 = -1.25
-1.25 = 0.05(x + -10)

Reorder the terms:
-1.25 = 0.05(-10 + x)
-1.25 = (-10 * 0.05 + x * 0.05)
-1.25 = (-0.5 + 0.05x)

Solving
-1.25 = -0.5 + 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.
-1.25 + -0.05x = -0.5 + 0.05x + -0.05x

Combine like terms: 0.05x + -0.05x = 0.00
-1.25 + -0.05x = -0.5 + 0.00
-1.25 + -0.05x = -0.5

Add '1.25' to each side of the equation.
-1.25 + 1.25 + -0.05x = -0.5 + 1.25

Combine like terms: -1.25 + 1.25 = 0.00
0.00 + -0.05x = -0.5 + 1.25
-0.05x = -0.5 + 1.25

Combine like terms: -0.5 + 1.25 = 0.75
-0.05x = 0.75

Divide each side by '-0.05'.
x = -15

Simplifying
x = -15

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