21+5x=400

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Solution for 21+5x=400 equation: 


Simplifying
21 + 5x = 400

Solving
21 + 5x = 400

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 + 5x = 400 + -21

Combine like terms: 21 + -21 = 0
0 + 5x = 400 + -21
5x = 400 + -21

Combine like terms: 400 + -21 = 379
5x = 379

Divide each side by '5'.
x = 75.8

Simplifying
x = 75.8

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