4[X+7]=80

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Solution for 4[X+7]=80 equation: 


Simplifying
4[X + 7] = 80

Reorder the terms:
4[7 + X] = 80
[7 * 4 + X * 4] = 80
[28 + 4X] = 80

Solving
28 + 4X = 80

Solving for variable 'X'.

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

Add '-28' to each side of the equation.
28 + -28 + 4X = 80 + -28

Combine like terms: 28 + -28 = 0
0 + 4X = 80 + -28
4X = 80 + -28

Combine like terms: 80 + -28 = 52
4X = 52

Divide each side by '4'.
X = 13

Simplifying
X = 13

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