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

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


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

Reorder the terms for easier multiplication:
(0.15 * 12x) + (0.25y * 12) = 0.21 * 12

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

Reorder the terms for easier multiplication:
(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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