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

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


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

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

Reorder the terms:
28 + 21x = 4(5 + x)
28 + 21x = (5 * 4 + x * 4)
28 + 21x = (20 + 4x)

Solving
28 + 21x = 20 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
28 + 21x + -4x = 20 + 4x + -4x

Combine like terms: 21x + -4x = 17x
28 + 17x = 20 + 4x + -4x

Combine like terms: 4x + -4x = 0
28 + 17x = 20 + 0
28 + 17x = 20

Add '-28' to each side of the equation.
28 + -28 + 17x = 20 + -28

Combine like terms: 28 + -28 = 0
0 + 17x = 20 + -28
17x = 20 + -28

Combine like terms: 20 + -28 = -8
17x = -8

Divide each side by '17'.
x = -0.4705882353

Simplifying
x = -0.4705882353

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