7x+49=21

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Solution for 7x+49=21 equation: 


Simplifying
7x + 49 = 21

Reorder the terms:
49 + 7x = 21

Solving
49 + 7x = 21

Solving for variable 'x'.

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

Add '-49' to each side of the equation.
49 + -49 + 7x = 21 + -49

Combine like terms: 49 + -49 = 0
0 + 7x = 21 + -49
7x = 21 + -49

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

Divide each side by '7'.
x = -4

Simplifying
x = -4

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