7x-28=-21

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Solution for 7x-28=-21 equation: 


Simplifying
7x + -28 = -21

Reorder the terms:
-28 + 7x = -21

Solving
-28 + 7x = -21

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 + 7x = -21 + 28

Combine like terms: -28 + 28 = 0
0 + 7x = -21 + 28
7x = -21 + 28

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

Divide each side by '7'.
x = 1

Simplifying
x = 1

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