-0.4(30)+0.6x=0.3(30+x)

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Solution for -0.4(30)+0.6x=0.3(30+x) equation: 


Simplifying
-0.4(30) + 0.6x = 0.3(30 + x)

Multiply -0.4 * 30
-12 + 0.6x = 0.3(30 + x)
-12 + 0.6x = (30 * 0.3 + x * 0.3)
-12 + 0.6x = (9 + 0.3x)

Solving
-12 + 0.6x = 9 + 0.3x

Solving for variable 'x'.

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

Add '-0.3x' to each side of the equation.
-12 + 0.6x + -0.3x = 9 + 0.3x + -0.3x

Combine like terms: 0.6x + -0.3x = 0.3x
-12 + 0.3x = 9 + 0.3x + -0.3x

Combine like terms: 0.3x + -0.3x = 0.0
-12 + 0.3x = 9 + 0.0
-12 + 0.3x = 9

Add '12' to each side of the equation.
-12 + 12 + 0.3x = 9 + 12

Combine like terms: -12 + 12 = 0
0 + 0.3x = 9 + 12
0.3x = 9 + 12

Combine like terms: 9 + 12 = 21
0.3x = 21

Divide each side by '0.3'.
x = 70

Simplifying
x = 70

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