0.5x-9=0.1(x+30)

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Solution for 0.5x-9=0.1(x+30) equation:


Simplifying
0.5x + -9 = 0.1(x + 30)

Reorder the terms:
-9 + 0.5x = 0.1(x + 30)

Reorder the terms:
-9 + 0.5x = 0.1(30 + x)
-9 + 0.5x = (30 * 0.1 + x * 0.1)
-9 + 0.5x = (3 + 0.1x)

Solving
-9 + 0.5x = 3 + 0.1x

Solving for variable 'x'.

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

Add '-0.1x' to each side of the equation.
-9 + 0.5x + -0.1x = 3 + 0.1x + -0.1x

Combine like terms: 0.5x + -0.1x = 0.4x
-9 + 0.4x = 3 + 0.1x + -0.1x

Combine like terms: 0.1x + -0.1x = 0.0
-9 + 0.4x = 3 + 0.0
-9 + 0.4x = 3

Add '9' to each side of the equation.
-9 + 9 + 0.4x = 3 + 9

Combine like terms: -9 + 9 = 0
0 + 0.4x = 3 + 9
0.4x = 3 + 9

Combine like terms: 3 + 9 = 12
0.4x = 12

Divide each side by '0.4'.
x = 30

Simplifying
x = 30

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