7[x+8]=84

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Solution for 7[x+8]=84 equation: 


Simplifying
7[x + 8] = 84

Reorder the terms:
7[8 + x] = 84
[8 * 7 + x * 7] = 84
[56 + 7x] = 84

Solving
56 + 7x = 84

Solving for variable 'x'.

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

Add '-56' to each side of the equation.
56 + -56 + 7x = 84 + -56

Combine like terms: 56 + -56 = 0
0 + 7x = 84 + -56
7x = 84 + -56

Combine like terms: 84 + -56 = 28
7x = 28

Divide each side by '7'.
x = 4

Simplifying
x = 4

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