.30x+.55(30)=.15(140)

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Solution for .30x+.55(30)=.15(140) equation: 


Simplifying
0.30x + 0.55(30) = 0.15(140)

Multiply 0.55 * 30
0.30x + 16.5 = 0.15(140)

Reorder the terms:
16.5 + 0.30x = 0.15(140)

Multiply 0.15 * 140
16.5 + 0.30x = 21

Solving
16.5 + 0.30x = 21

Solving for variable 'x'.

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

Add '-16.5' to each side of the equation.
16.5 + -16.5 + 0.30x = 21 + -16.5

Combine like terms: 16.5 + -16.5 = 0.0
0.0 + 0.30x = 21 + -16.5
0.30x = 21 + -16.5

Combine like terms: 21 + -16.5 = 4.5
0.30x = 4.5

Divide each side by '0.30'.
x = 15

Simplifying
x = 15

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