0.3x-0.1(18-3x)=-0.2(x-7)

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Solution for 0.3x-0.1(18-3x)=-0.2(x-7) equation:


Simplifying
0.3x + -0.1(18 + -3x) = -0.2(x + -7)
0.3x + (18 * -0.1 + -3x * -0.1) = -0.2(x + -7)
0.3x + (-1.8 + 0.3x) = -0.2(x + -7)

Reorder the terms:
-1.8 + 0.3x + 0.3x = -0.2(x + -7)

Combine like terms: 0.3x + 0.3x = 0.6x
-1.8 + 0.6x = -0.2(x + -7)

Reorder the terms:
-1.8 + 0.6x = -0.2(-7 + x)
-1.8 + 0.6x = (-7 * -0.2 + x * -0.2)
-1.8 + 0.6x = (1.4 + -0.2x)

Solving
-1.8 + 0.6x = 1.4 + -0.2x

Solving for variable 'x'.

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

Add '0.2x' to each side of the equation.
-1.8 + 0.6x + 0.2x = 1.4 + -0.2x + 0.2x

Combine like terms: 0.6x + 0.2x = 0.8x
-1.8 + 0.8x = 1.4 + -0.2x + 0.2x

Combine like terms: -0.2x + 0.2x = 0.0
-1.8 + 0.8x = 1.4 + 0.0
-1.8 + 0.8x = 1.4

Add '1.8' to each side of the equation.
-1.8 + 1.8 + 0.8x = 1.4 + 1.8

Combine like terms: -1.8 + 1.8 = 0.0
0.0 + 0.8x = 1.4 + 1.8
0.8x = 1.4 + 1.8

Combine like terms: 1.4 + 1.8 = 3.2
0.8x = 3.2

Divide each side by '0.8'.
x = 4

Simplifying
x = 4

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