3(5x+7)=(-2)(-4)k

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Solution for 3(5x+7)=(-2)(-4)k equation:


Simplifying
3(5x + 7) = (-2)(-4) * k

Reorder the terms:
3(7 + 5x) = (-2)(-4) * k
(7 * 3 + 5x * 3) = (-2)(-4) * k
(21 + 15x) = (-2)(-4) * k

Multiply -2 * -4
21 + 15x = 8k

Solving
21 + 15x = 8k

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 15x = -21 + 8k

Combine like terms: 21 + -21 = 0
0 + 15x = -21 + 8k
15x = -21 + 8k

Divide each side by '15'.
x = -1.4 + 0.5333333333k

Simplifying
x = -1.4 + 0.5333333333k

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