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

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


Simplifying
7(3x + 4) = (5x + -4)

Reorder the terms:
7(4 + 3x) = (5x + -4)
(4 * 7 + 3x * 7) = (5x + -4)
(28 + 21x) = (5x + -4)

Reorder the terms:
28 + 21x = (-4 + 5x)

Remove parenthesis around (-4 + 5x)
28 + 21x = -4 + 5x

Solving
28 + 21x = -4 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
28 + 21x + -5x = -4 + 5x + -5x

Combine like terms: 21x + -5x = 16x
28 + 16x = -4 + 5x + -5x

Combine like terms: 5x + -5x = 0
28 + 16x = -4 + 0
28 + 16x = -4

Add '-28' to each side of the equation.
28 + -28 + 16x = -4 + -28

Combine like terms: 28 + -28 = 0
0 + 16x = -4 + -28
16x = -4 + -28

Combine like terms: -4 + -28 = -32
16x = -32

Divide each side by '16'.
x = -2

Simplifying
x = -2

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