3x+4=5(8-x)

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Solution for 3x+4=5(8-x) equation:


Simplifying
3x + 4 = 5(8 + -1x)

Reorder the terms:
4 + 3x = 5(8 + -1x)
4 + 3x = (8 * 5 + -1x * 5)
4 + 3x = (40 + -5x)

Solving
4 + 3x = 40 + -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 + 3x + 5x = 40 + -5x + 5x

Combine like terms: 3x + 5x = 8x
4 + 8x = 40 + -5x + 5x

Combine like terms: -5x + 5x = 0
4 + 8x = 40 + 0
4 + 8x = 40

Add '-4' to each side of the equation.
4 + -4 + 8x = 40 + -4

Combine like terms: 4 + -4 = 0
0 + 8x = 40 + -4
8x = 40 + -4

Combine like terms: 40 + -4 = 36
8x = 36

Divide each side by '8'.
x = 4.5

Simplifying
x = 4.5

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