3x+4(x-1)=5(x-7)

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Solution for 3x+4(x-1)=5(x-7) equation:


Simplifying
3x + 4(x + -1) = 5(x + -7)

Reorder the terms:
3x + 4(-1 + x) = 5(x + -7)
3x + (-1 * 4 + x * 4) = 5(x + -7)
3x + (-4 + 4x) = 5(x + -7)

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

Combine like terms: 3x + 4x = 7x
-4 + 7x = 5(x + -7)

Reorder the terms:
-4 + 7x = 5(-7 + x)
-4 + 7x = (-7 * 5 + x * 5)
-4 + 7x = (-35 + 5x)

Solving
-4 + 7x = -35 + 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.
-4 + 7x + -5x = -35 + 5x + -5x

Combine like terms: 7x + -5x = 2x
-4 + 2x = -35 + 5x + -5x

Combine like terms: 5x + -5x = 0
-4 + 2x = -35 + 0
-4 + 2x = -35

Add '4' to each side of the equation.
-4 + 4 + 2x = -35 + 4

Combine like terms: -4 + 4 = 0
0 + 2x = -35 + 4
2x = -35 + 4

Combine like terms: -35 + 4 = -31
2x = -31

Divide each side by '2'.
x = -15.5

Simplifying
x = -15.5

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