7-21x=4

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Solution for 7-21x=4 equation: 


Simplifying
7 + -21x = 4

Solving
7 + -21x = 4

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + -21x = 4 + -7

Combine like terms: 7 + -7 = 0
0 + -21x = 4 + -7
-21x = 4 + -7

Combine like terms: 4 + -7 = -3
-21x = -3

Divide each side by '-21'.
x = 0.1428571429

Simplifying
x = 0.1428571429

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