.15(12x)+.25(12y)=.21(12)

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Solution for .15(12x)+.25(12y)=.21(12) equation: 


Simplifying
0.15(12x) + 0.25(12y) = 0.21(12)

Remove parenthesis around (12x)
0.15 * 12x + 0.25(12y) = 0.21(12)

Multiply 0.15 * 12
1.8x + 0.25(12y) = 0.21(12)

Remove parenthesis around (12y)
1.8x + 0.25 * 12y = 0.21(12)

Multiply 0.25 * 12
1.8x + 3y = 0.21(12)

Multiply 0.21 * 12
1.8x + 3y = 2.52

Solving
1.8x + 3y = 2.52

Solving for variable 'x'.

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

Add '-3y' to each side of the equation.
1.8x + 3y + -3y = 2.52 + -3y

Combine like terms: 3y + -3y = 0
1.8x + 0 = 2.52 + -3y
1.8x = 2.52 + -3y

Divide each side by '1.8'.
x = 1.4 + -1.666666667y

Simplifying
x = 1.4 + -1.666666667y

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