4(3x)-3(-4y)=15

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Solution for 4(3x)-3(-4y)=15 equation:


Simplifying
4(3x) + -3(-4y) = 15

Remove parenthesis around (3x)
4 * 3x + -3(-4y) = 15

Multiply 4 * 3
12x + -3(-4y) = 15

Remove parenthesis around (-4y)
12x + -3 * -4y = 15

Multiply -3 * -4
12x + 12y = 15

Solving
12x + 12y = 15

Solving for variable 'x'.

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

Add '-12y' to each side of the equation.
12x + 12y + -12y = 15 + -12y

Combine like terms: 12y + -12y = 0
12x + 0 = 15 + -12y
12x = 15 + -12y

Divide each side by '12'.
x = 1.25 + -1y

Simplifying
x = 1.25 + -1y

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