7[2e+3]=3(4e+9)

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Solution for 7[2e+3]=3(4e+9) equation:


Simplifying
7[2e + 3] = 3(4e + 9)

Reorder the terms:
7[3 + 2e] = 3(4e + 9)
[3 * 7 + 2e * 7] = 3(4e + 9)
[21 + 14e] = 3(4e + 9)

Reorder the terms:
21 + 14e = 3(9 + 4e)
21 + 14e = (9 * 3 + 4e * 3)
21 + 14e = (27 + 12e)

Solving
21 + 14e = 27 + 12e

Solving for variable 'e'.

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

Add '-12e' to each side of the equation.
21 + 14e + -12e = 27 + 12e + -12e

Combine like terms: 14e + -12e = 2e
21 + 2e = 27 + 12e + -12e

Combine like terms: 12e + -12e = 0
21 + 2e = 27 + 0
21 + 2e = 27

Add '-21' to each side of the equation.
21 + -21 + 2e = 27 + -21

Combine like terms: 21 + -21 = 0
0 + 2e = 27 + -21
2e = 27 + -21

Combine like terms: 27 + -21 = 6
2e = 6

Divide each side by '2'.
e = 3

Simplifying
e = 3

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