2[7x-3x]+4=28

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Solution for 2[7x-3x]+4=28 equation:


Simplifying
2[7x + -3x] + 4 = 28

Combine like terms: 7x + -3x = 4x
2[4x] + 4 = 28

Remove brackets around [4x]
2 * 4x + 4 = 28

Multiply 2 * 4
8x + 4 = 28

Reorder the terms:
4 + 8x = 28

Solving
4 + 8x = 28

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 8x = 28 + -4

Combine like terms: 4 + -4 = 0
0 + 8x = 28 + -4
8x = 28 + -4

Combine like terms: 28 + -4 = 24
8x = 24

Divide each side by '8'.
x = 3

Simplifying
x = 3

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