3x=4(7-x)

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


Simplifying
3x = 4(7 + -1x)
3x = (7 * 4 + -1x * 4)
3x = (28 + -4x)

Solving
3x = 28 + -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.
3x + 4x = 28 + -4x + 4x

Combine like terms: 3x + 4x = 7x
7x = 28 + -4x + 4x

Combine like terms: -4x + 4x = 0
7x = 28 + 0
7x = 28

Divide each side by '7'.
x = 4

Simplifying
x = 4

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