(e+4)*x*3=21

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Solution for (e+4)*x*3=21 equation:


Simplifying
(e + 4) * x * 3 = 21

Reorder the terms:
(4 + e) * x * 3 = 21

Reorder the terms for easier multiplication:
3x(4 + e) = 21
(4 * 3x + e * 3x) = 21

Reorder the terms:
(3ex + 12x) = 21
(3ex + 12x) = 21

Solving
3ex + 12x = 21

Solving for variable 'e'.

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

Add '-12x' to each side of the equation.
3ex + 12x + -12x = 21 + -12x

Combine like terms: 12x + -12x = 0
3ex + 0 = 21 + -12x
3ex = 21 + -12x

Divide each side by '3x'.
e = 7x-1 + -4

Simplifying
e = 7x-1 + -4

Reorder the terms:
e = -4 + 7x-1

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