-28=7[x-7]

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Solution for -28=7[x-7] equation:


Simplifying
-28 = 7[x + -7]

Reorder the terms:
-28 = 7[-7 + x]
-28 = [-7 * 7 + x * 7]
-28 = [-49 + 7x]

Solving
-28 = -49 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-28 + -7x = -49 + 7x + -7x

Combine like terms: 7x + -7x = 0
-28 + -7x = -49 + 0
-28 + -7x = -49

Add '28' to each side of the equation.
-28 + 28 + -7x = -49 + 28

Combine like terms: -28 + 28 = 0
0 + -7x = -49 + 28
-7x = -49 + 28

Combine like terms: -49 + 28 = -21
-7x = -21

Divide each side by '-7'.
x = 3

Simplifying
x = 3

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