7x+21=39

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Solution for 7x+21=39 equation:


Simplifying
7x + 21 = 39

Reorder the terms:
21 + 7x = 39

Solving
21 + 7x = 39

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 7x = 39 + -21

Combine like terms: 21 + -21 = 0
0 + 7x = 39 + -21
7x = 39 + -21

Combine like terms: 39 + -21 = 18
7x = 18

Divide each side by '7'.
x = 2.571428571

Simplifying
x = 2.571428571

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