7*[x-5]=21

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Solution for 7*[x-5]=21 equation: 


Simplifying
7[x + -5] = 21

Reorder the terms:
7[-5 + x] = 21
[-5 * 7 + x * 7] = 21
[-35 + 7x] = 21

Solving
-35 + 7x = 21

Solving for variable 'x'.

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

Add '35' to each side of the equation.
-35 + 35 + 7x = 21 + 35

Combine like terms: -35 + 35 = 0
0 + 7x = 21 + 35
7x = 21 + 35

Combine like terms: 21 + 35 = 56
7x = 56

Divide each side by '7'.
x = 8

Simplifying
x = 8

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